-
Notifications
You must be signed in to change notification settings - Fork 0
/
article.html
598 lines (583 loc) · 46.8 KB
/
article.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]> <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<!-- Responsive Meta Data -->
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <!-- site com responsivo / comente caso contrário-->
<!-- Core Meta Data -->
<meta name="author" content="@italowaxman">
<meta name="description" content="A collaborative website about the Javascript, ECMAScript sixth edition, a.k.a. ES6, Harmonic and others.">
<meta name="keywords" content="javascript, JS, ECMAScript, ES6, Harmonic, front-end">
<!-- Facebook Tags -->
<meta property="og:description" content="A collaborative website about the Javascript, ECMAScript sixth edition, a.k.a. ES6, Harmonic and others.">
<meta property="og:image" content="assets/images/thumb_face.png">
<meta property="og:site_name" content="JS Rocks">
<meta property="og:title" content="JS Rocks">
<meta property="og:type" content="website">
<meta property="og:url" content="http://jsrocks.com">
<!-- Twitter tags -->
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="http://jsrocks.com">
<meta name="twitter:creator" content="Usuário do Twitter">
<meta name="twitter:title" content="JS Rocks">
<meta name="twitter:description" content="A collaborative website about the Javascript, ECMAScript sixth edition, a.k.a. ES6, Harmonic and others.">
<meta name="twitter:image" content="assetes/images/thumb_face.png">
<!-- Humans -->
<link rel="author" href="humans.txt" />
<!-- Favicon -->
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
<link rel="shortcut icon" href="favicon.png" type="image/png">
<link rel="shortcut icon" href="Endereço do arquivo/favicon.png" type="image/png"> <!-- link absoluto do favicon -->
<!-- CSS compilado e minificado -->
<link rel="stylesheet" href="assets/css/_build/style.min.css">
<meta charset="UTF-8">
<title>JS Rocks</title>
</head>
<body>
<div class="wrapper">
<header>
<div class="container">
<div class="row row-down">
<div class="col-sm-2 col-xs-12 flags-list">
<div>
<a href="javascript:void(0);" class="item-flag"><img src="assets/images/flag-ptbr-header.png" alt="flag ptbr" title="PtBR"></a>
<a href="javascript:void(0);" class="item-flag"><img src="assets/images/flag-english-header.png" alt="flag english" title="English"></a>
</div>
</div>
<div class="col-sm-8 col-xs-12 txt-header">
<span>A collaborative site about the Javascript, ES6, Harmonic and others.</span>
</div>
<div class="col-sm-2 col-xs-12 social-list">
<div class="right">
<a href="https://twitter.com/es6rocks" target="_blank" class="item-social"><img src="assets/images/icon-twitter-header.png" alt="icon twitter" title="Twitter"></a>
<a href="https://github.com/es6rocks" target="_blank" class="item-social"><img src="assets/images/icon-github-header.png" alt="icon github" title="Github"></a>
</div>
</div>
</div>
<div class="row">
<div class="col-md-5 hidden-xs main-menu">
<nav>
<ul class="right">
<li class="item-main-menu">
<div class="thunder">
<svg version="1.1" class="" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="17.191px" height="29.535px" viewBox="0 0 17.191 29.535" enable-background="new 0 0 17.191 29.535" xml:space="preserve">
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#FCCF0F" points="17.191,0 1.438,15.457 6.365,15.466 0,29.535
17.166,12.907 11.773,12.661 "/>
</svg>
</div>
<a href="index.html">Posts</a>
</li>
<li class="item-main-menu">
<div class="thunder">
<svg version="1.1" class="" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="17.191px" height="29.535px" viewBox="0 0 17.191 29.535" enable-background="new 0 0 17.191 29.535" xml:space="preserve">
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#FCCF0F" points="17.191,0 1.438,15.457 6.365,15.466 0,29.535
17.166,12.907 11.773,12.661 "/>
</svg>
</div>
<a href="https://github.com/es6rocks/es6rocks.github.io/">About</a>
</li>
<li class="item-main-menu">
<div class="thunder">
<svg version="1.1" class="" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="17.191px" height="29.535px" viewBox="0 0 17.191 29.535" enable-background="new 0 0 17.191 29.535" xml:space="preserve">
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#FCCF0F" points="17.191,0 1.438,15.457 6.365,15.466 0,29.535
17.166,12.907 11.773,12.661 "/>
</svg>
</div>
<a href="https://github.com/es6rocks/es6rocks.github.io/issues">Contact</a>
</li>
</ul>
</nav>
</div>
<div class="col-md-2 col-sm-12 col-xs-12 logo">
<a href="index.html" title="Return to posts">
<svg version="1.1" class="logo-svg" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="142.177px" height="155.783px" viewBox="0 0 142.177 155.783" enable-background="new 0 0 142.177 155.783"
xml:space="preserve">
<path fill="#FECF0A" d="M69.089,14.633c-26.213-0.08-48.162,10.428-55.916,26.771C6.558,55.34,12.782,82.197,28.31,106.716
c13.359,21.099,29.479,34.229,42.066,34.267l-0.012,3.786l0.021-3.786c13.998,0.037,33.537-16.743,47.514-40.807
c13.439-23.144,17.551-45.979,10.469-58.175C118.763,25.457,95.493,14.714,69.089,14.633z"/>
<path fill="#010101" d="M69.108,7.062C39.517,6.971,15.446,18.891,6.298,38.168c-8.992,18.947,1.346,50.111,15.578,72.59
c14.959,23.62,33.076,37.75,48.471,37.797h0.012c19.461,0.051,41.201-22.357,54.113-44.588c11.76-20.251,20.688-48.16,10.469-65.76
C123.841,19.087,98.614,7.152,69.108,7.062z M117.894,100.176C103.919,124.24,84.38,141.02,70.38,140.983l-0.021,3.786l0.014-3.786
c-12.588-0.038-28.707-13.168-42.068-34.267C12.778,82.197,6.554,55.34,13.167,41.404c7.756-16.342,29.705-26.851,55.916-26.771
c26.406,0.081,49.674,10.823,59.279,27.368C135.444,54.198,131.335,77.033,117.894,100.176z"/>
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#010101" points="80.015,23.006 64.261,38.463 69.188,38.473 62.823,52.542
79.989,35.913 74.597,35.667 "/>
<line fill="none" stroke="#010101" stroke-width="0.25" stroke-miterlimit="10" x1="43.396" y1="60.623" x2="99.444" y2="60.623"/>
<g>
<g>
<path fill="#010101" d="M48.709,110.585c0-0.101,0.026-0.179,0.074-0.236c0.051-0.06,0.125-0.089,0.224-0.09h4.399
c0.468,0,0.902,0.092,1.311,0.272c0.412,0.181,0.764,0.427,1.072,0.736c0.302,0.311,0.541,0.673,0.716,1.089
c0.175,0.416,0.263,0.859,0.263,1.329c0,0.32-0.043,0.624-0.123,0.914c-0.088,0.287-0.207,0.559-0.356,0.81
c-0.147,0.251-0.327,0.48-0.533,0.684c-0.207,0.205-0.431,0.38-0.677,0.525l1.749,3.411c0.034,0.065,0.075,0.144,0.123,0.232
c0.048,0.09,0.077,0.167,0.077,0.234c0,0.074-0.026,0.132-0.073,0.171c-0.049,0.04-0.112,0.06-0.194,0.06h-2.336
c-0.077,0-0.144-0.022-0.207-0.07c-0.062-0.047-0.103-0.11-0.118-0.189l-1.655-3.222h-1.102v3.18c0,0.201-0.104,0.302-0.313,0.302
h-2.022c-0.09,0-0.164-0.023-0.218-0.072c-0.054-0.051-0.08-0.126-0.08-0.229V110.585z M54.039,113.714
c0-0.14-0.026-0.282-0.074-0.423c-0.05-0.143-0.122-0.271-0.213-0.389c-0.089-0.116-0.199-0.216-0.326-0.296
c-0.126-0.08-0.27-0.131-0.423-0.155c-0.125-0.009-0.244-0.017-0.358-0.023c-0.11-0.008-0.231-0.012-0.365-0.012h-0.936v2.588
h1.255c0.078,0,0.151-0.002,0.216-0.008c0.063-0.004,0.132-0.011,0.21-0.021c0.157-0.019,0.302-0.067,0.427-0.146
c0.126-0.076,0.237-0.173,0.32-0.289c0.088-0.114,0.153-0.244,0.198-0.387C54.015,114.01,54.039,113.864,54.039,113.714z"/>
<path fill="#010101" d="M56.984,115.505c0-0.499,0.062-0.977,0.183-1.436c0.125-0.458,0.296-0.888,0.525-1.29
c0.228-0.401,0.498-0.766,0.815-1.096c0.315-0.328,0.667-0.609,1.053-0.843c0.386-0.232,0.798-0.412,1.244-0.542
c0.442-0.129,0.902-0.194,1.385-0.194c0.476,0,0.94,0.065,1.381,0.194c0.446,0.13,0.86,0.31,1.248,0.542
c0.386,0.233,0.738,0.515,1.053,0.843c0.321,0.33,0.593,0.694,0.816,1.096c0.224,0.402,0.399,0.832,0.524,1.29
c0.125,0.459,0.19,0.937,0.19,1.436c0,0.498-0.065,0.976-0.19,1.434s-0.3,0.886-0.524,1.283c-0.224,0.396-0.496,0.76-0.816,1.086
c-0.315,0.325-0.667,0.606-1.053,0.842c-0.388,0.236-0.802,0.415-1.248,0.542c-0.441,0.128-0.906,0.191-1.381,0.191
c-0.482,0-0.943-0.063-1.385-0.191c-0.446-0.127-0.858-0.306-1.244-0.542c-0.386-0.235-0.738-0.517-1.053-0.842
c-0.317-0.326-0.587-0.689-0.815-1.086c-0.229-0.397-0.4-0.825-0.525-1.283C57.046,116.481,56.984,116.003,56.984,115.505z
M59.618,115.499c0,0.39,0.065,0.753,0.192,1.092c0.126,0.338,0.304,0.633,0.533,0.884c0.227,0.252,0.5,0.45,0.811,0.593
c0.313,0.144,0.66,0.215,1.035,0.215c0.375,0,0.724-0.071,1.037-0.215c0.313-0.143,0.587-0.341,0.815-0.593
c0.229-0.251,0.408-0.546,0.533-0.884c0.126-0.339,0.19-0.702,0.19-1.092c0-0.386-0.063-0.75-0.19-1.09
c-0.125-0.341-0.304-0.639-0.533-0.892c-0.228-0.252-0.501-0.453-0.815-0.599c-0.313-0.146-0.662-0.221-1.037-0.221
c-0.375,0-0.721,0.075-1.035,0.221c-0.311,0.146-0.583,0.347-0.811,0.599c-0.229,0.253-0.407,0.551-0.533,0.892
C59.684,114.749,59.618,115.113,59.618,115.499z"/>
<path fill="#010101" d="M75.955,111.022c0.074,0.047,0.134,0.108,0.169,0.183c0.037,0.076,0.028,0.165-0.021,0.268l-1.148,1.692
c-0.05,0.08-0.104,0.126-0.162,0.138c-0.056,0.011-0.125-0.008-0.207-0.06c-0.222-0.174-0.466-0.309-0.736-0.403
c-0.265-0.093-0.548-0.14-0.85-0.14c-0.373,0-0.714,0.073-1.025,0.219c-0.315,0.146-0.587,0.347-0.811,0.599
c-0.228,0.253-0.404,0.55-0.531,0.889c-0.127,0.338-0.19,0.699-0.19,1.085c0,0.385,0.063,0.746,0.19,1.081
c0.127,0.338,0.304,0.63,0.531,0.882c0.224,0.252,0.496,0.451,0.811,0.597c0.312,0.146,0.652,0.218,1.025,0.218
c0.302,0,0.587-0.048,0.857-0.145c0.274-0.096,0.519-0.231,0.746-0.405c0.078-0.052,0.148-0.072,0.201-0.064
c0.052,0.011,0.107,0.054,0.164,0.128l1.161,1.733c0.051,0.104,0.058,0.19,0.022,0.262c-0.035,0.07-0.093,0.128-0.17,0.177
c-0.427,0.295-0.887,0.524-1.379,0.687s-1.013,0.243-1.557,0.243c-0.481,0-0.941-0.063-1.386-0.19
c-0.44-0.128-0.852-0.307-1.239-0.543c-0.39-0.235-0.738-0.517-1.052-0.842c-0.317-0.326-0.589-0.689-0.816-1.086
c-0.226-0.397-0.401-0.825-0.522-1.283c-0.123-0.458-0.185-0.936-0.185-1.434c0-0.499,0.062-0.977,0.185-1.436
c0.121-0.458,0.296-0.888,0.522-1.29c0.228-0.401,0.5-0.766,0.816-1.096c0.313-0.328,0.662-0.609,1.052-0.843
c0.388-0.231,0.799-0.412,1.239-0.542c0.444-0.129,0.904-0.194,1.386-0.194c0.544,0,1.061,0.078,1.543,0.236
C75.071,110.499,75.527,110.726,75.955,111.022z"/>
<path fill="#010101" d="M77.002,110.57c0-0.085,0.026-0.157,0.079-0.217c0.054-0.062,0.125-0.094,0.222-0.094h2.008
c0.066,0,0.14,0.029,0.216,0.085c0.073,0.058,0.112,0.133,0.112,0.226v3.842c0.492-0.656,0.979-1.306,1.456-1.944
c0.477-0.64,0.96-1.288,1.45-1.945c0.048-0.081,0.113-0.145,0.191-0.195c0.079-0.048,0.159-0.074,0.233-0.074h2.588
c0.109,0,0.166,0.036,0.166,0.107c0,0.046-0.026,0.103-0.077,0.168l-3.204,4.378l3.544,5.527c0.052,0.079,0.078,0.142,0.078,0.188
c0,0.071-0.054,0.106-0.153,0.106h-2.57c-0.076,0-0.154-0.023-0.228-0.071c-0.078-0.045-0.138-0.11-0.188-0.189
c-0.24-0.338-0.458-0.663-0.656-0.972c-0.199-0.312-0.392-0.62-0.576-0.929c-0.186-0.306-0.374-0.618-0.564-0.934
c-0.19-0.313-0.398-0.646-0.625-0.994l-0.864,1.03v2.748c0,0.207-0.112,0.311-0.328,0.311h-2.003
c-0.203,0-0.306-0.104-0.306-0.311V110.57z"/>
<path fill="#010101" d="M87.878,117.344c0.079,0.066,0.178,0.154,0.297,0.265c0.121,0.111,0.257,0.22,0.412,0.328
c0.229,0.16,0.462,0.285,0.688,0.373c0.228,0.089,0.465,0.134,0.714,0.134c0.233,0,0.428-0.026,0.582-0.08
c0.158-0.055,0.283-0.126,0.373-0.215c0.089-0.091,0.154-0.192,0.191-0.312c0.038-0.116,0.06-0.24,0.06-0.372
c0-0.146-0.056-0.275-0.158-0.391c-0.109-0.115-0.238-0.218-0.394-0.307c-0.154-0.09-0.314-0.166-0.484-0.229
c-0.168-0.064-0.313-0.116-0.435-0.157c-0.546-0.199-1.021-0.411-1.43-0.638c-0.408-0.229-0.749-0.483-1.02-0.763
c-0.272-0.279-0.478-0.586-0.615-0.921c-0.136-0.338-0.203-0.71-0.203-1.124c0-0.437,0.086-0.834,0.257-1.19
c0.17-0.357,0.41-0.663,0.729-0.916c0.312-0.253,0.695-0.449,1.139-0.588c0.443-0.138,0.941-0.209,1.491-0.209
c0.412,0,0.808,0.049,1.186,0.146c0.381,0.097,0.752,0.25,1.119,0.463c0.154,0.093,0.3,0.19,0.439,0.291
c0.14,0.103,0.258,0.199,0.365,0.293c0.104,0.095,0.185,0.184,0.246,0.268c0.063,0.085,0.094,0.158,0.094,0.219
c0,0.062-0.013,0.119-0.043,0.169c-0.03,0.053-0.076,0.11-0.133,0.178l-1.042,1.147c-0.078,0.081-0.154,0.12-0.232,0.12
c-0.063,0-0.121-0.019-0.176-0.057c-0.05-0.037-0.107-0.084-0.171-0.141l-0.063-0.057c-0.088-0.08-0.19-0.162-0.301-0.246
c-0.107-0.085-0.229-0.162-0.354-0.229c-0.131-0.067-0.265-0.125-0.405-0.169c-0.14-0.045-0.283-0.067-0.431-0.067
c-0.15,0-0.287,0.013-0.423,0.039c-0.127,0.026-0.244,0.067-0.341,0.123c-0.103,0.057-0.183,0.131-0.24,0.222
c-0.061,0.094-0.09,0.203-0.09,0.336c0,0.132,0.031,0.245,0.095,0.341c0.063,0.097,0.159,0.187,0.287,0.269
c0.127,0.082,0.283,0.16,0.47,0.231c0.19,0.074,0.408,0.152,0.66,0.237c0.482,0.165,0.925,0.338,1.331,0.519
c0.404,0.18,0.755,0.395,1.052,0.641c0.292,0.245,0.523,0.542,0.689,0.885c0.166,0.344,0.248,0.759,0.248,1.247
c0,0.517-0.101,0.986-0.306,1.408c-0.203,0.419-0.483,0.777-0.841,1.073c-0.358,0.297-0.773,0.526-1.255,0.688
c-0.482,0.161-0.997,0.242-1.553,0.242c-0.522,0-1.034-0.097-1.538-0.29c-0.505-0.193-0.971-0.452-1.409-0.777
c-0.181-0.137-0.336-0.271-0.459-0.402c-0.125-0.132-0.224-0.238-0.296-0.318l-0.021-0.022c-0.006-0.008-0.01-0.015-0.014-0.017
c-0.003-0.002-0.009-0.006-0.015-0.011c-0.004-0.01-0.009-0.016-0.013-0.018c-0.004-0.003-0.01-0.005-0.015-0.011
c-0.104-0.117-0.155-0.213-0.155-0.283c0-0.079,0.051-0.169,0.155-0.269l1.18-1.163c0.093-0.071,0.172-0.104,0.228-0.104
c0.045,0,0.086,0.014,0.132,0.042C87.763,117.246,87.816,117.288,87.878,117.344z"/>
</g>
<g>
<path fill="#010101" d="M67.083,70.823h-6.708c-0.306,0.025-0.41,0.135-0.41,0.466v24.097c0,0.435-0.093,0.848-0.274,1.231
c-0.173,0.37-0.412,0.701-0.705,0.979c-0.292,0.273-0.634,0.494-1.018,0.659c-0.934,0.391-1.936,0.303-2.642-0.062
c-0.371-0.192-0.696-0.407-0.968-0.639l-0.684-0.577c-0.159-0.135-0.267-0.222-0.503-0.096c-0.104,0.053-0.2,0.118-0.296,0.206
l-3.952,3.832c-0.08,0.067-0.214,0.173-0.214,0.555c0,0.056,0,0.1,0.002,0.138c0.473,0.723,1.027,1.371,1.648,1.927
c0.628,0.559,1.316,1.037,2.045,1.421c0.727,0.38,1.508,0.671,2.321,0.867c2.172,0.521,4.51,0.34,6.54-0.541
c1.281-0.556,2.419-1.328,3.389-2.297c0.969-0.971,1.752-2.121,2.321-3.418c0.569-1.296,0.857-2.706,0.857-4.186V71.573
C67.832,71.019,67.636,70.823,67.083,70.823z"/>
<path fill="#010101" d="M93.346,91.202c-0.518-1.077-1.256-2.021-2.19-2.805c-0.948-0.793-2.095-1.492-3.409-2.078
c-1.343-0.597-2.828-1.176-4.413-1.72c-0.843-0.284-1.584-0.55-2.22-0.797c-0.656-0.253-1.22-0.53-1.671-0.823
c-0.475-0.306-0.846-0.654-1.096-1.035c-0.265-0.402-0.397-0.876-0.397-1.406c0-0.531,0.125-0.996,0.371-1.38
c0.24-0.372,0.565-0.674,0.966-0.9c0.375-0.213,0.812-0.369,1.301-0.466c0.94-0.185,2.062-0.219,3.088,0.106
c0.494,0.157,0.975,0.359,1.426,0.601c0.449,0.24,0.872,0.513,1.26,0.809c0.383,0.292,0.731,0.573,1.043,0.849l0.212,0.196
c0.194,0.169,0.371,0.316,0.535,0.435c0.095,0.066,0.192,0.099,0.304,0.099c0.153,0,0.319-0.139,0.433-0.256l3.477-3.835
c0.174-0.195,0.305-0.368,0.387-0.51c0.056-0.098,0.083-0.207,0.083-0.327c0-0.036-0.017-0.174-0.218-0.451
c-0.185-0.255-0.443-0.532-0.766-0.822c-0.336-0.304-0.733-0.623-1.181-0.95c-0.458-0.334-0.941-0.656-1.438-0.958
c-1.174-0.676-2.396-1.18-3.618-1.492c-1.227-0.311-2.526-0.469-3.86-0.469c-1.777,0-3.408,0.227-4.85,0.675
c-1.422,0.443-2.656,1.078-3.663,1.886c-0.991,0.799-1.767,1.775-2.304,2.899c-0.537,1.123-0.807,2.394-0.807,3.781
c0,1.312,0.218,2.519,0.649,3.583c0.429,1.06,1.084,2.047,1.95,2.935c0.874,0.897,1.987,1.727,3.31,2.465
c1.338,0.745,2.925,1.454,4.716,2.102c0.406,0.14,0.897,0.317,1.468,0.532c0.589,0.224,1.155,0.493,1.687,0.802
c0.554,0.318,1.031,0.694,1.421,1.114c0.439,0.471,0.665,1.021,0.665,1.633c0,0.474-0.072,0.942-0.216,1.394
c-0.156,0.472-0.416,0.885-0.773,1.234c-0.351,0.346-0.828,0.626-1.419,0.829c-1.191,0.411-3.113,0.431-4.674-0.184
c-0.784-0.309-1.592-0.747-2.399-1.303c-0.534-0.375-1.016-0.759-1.43-1.139c-0.398-0.365-0.725-0.657-0.979-0.875
c-0.192-0.17-0.353-0.298-0.486-0.38c-0.075-0.046-0.14-0.07-0.183-0.07c-0.006,0-0.144,0.002-0.488,0.259l-3.893,3.852
c-0.358,0.338-0.384,0.515-0.384,0.561c0,0.002,0.003,0.172,0.384,0.605c0.047,0.034,0.086,0.074,0.119,0.118
c0.04,0.035,0.075,0.073,0.104,0.118l0.028,0.027c0.257,0.283,0.585,0.636,1.001,1.074c0.399,0.425,0.896,0.861,1.476,1.297
c1.417,1.058,2.965,1.912,4.604,2.539c3.352,1.287,7.009,1.167,10.021,0.151c1.553-0.523,2.916-1.27,4.055-2.217
c1.136-0.945,2.042-2.104,2.69-3.441c0.648-1.334,0.979-2.85,0.979-4.501C94.131,93.612,93.866,92.277,93.346,91.202z"/>
</g>
</g>
</svg>
</a>
</div>
<div class="col-md-5 hidden-xs search">
<form>
<div class="icon-search">
<img class="icon-search-white" src="assets/images/icon-search-header-hover.png" alt="icon search">
</div>
<input type="text" class="input-search" placeholder="Search anything?">
<input type="submit" class="button-search" value="OK">
</form>
<div class="popular-tags">
<span>Popular Searches:</span>
<ul class="list-tags">
<li class="item-list-tag"><a href="#">javascript</a></li>
<li class="item-list-tag"><a href="#">harmonic</a></li>
<li class="item-list-tag"><a href="#">ES6</a></li>
</ul>
</div>
</div>
</div>
<div class="row row-button">
<button class="button-post">
<svg version="1.1" class="thunder-hover" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="17.191px" height="29.535px" viewBox="0 0 17.191 29.535" enable-background="new 0 0 17.191 29.535" xml:space="preserve">
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#FCCF0F" points="17.191,0 1.438,15.457 6.365,15.466 0,29.535
17.166,12.907 11.773,12.661 "/>
</svg>
<span>Send a Post</span>
</button>
<p class="info-button-post">*using github</p>
</div>
</div>
</header>
<div class="content">
<div class="container">
<div class="row">
<div class="col-xs-12 header-article">
<div class="author-post">
<div class="avatar-author"><img src="assets/images/img-avatar-post.jpg" alt="avatar post"></div>
<div class="info-author">
<span>Posted by</span>
<a href="#" class="author">Jaydson Gomes</a>
</div>
</div>
<div class="date-post">Tue Sep 23 2014 01:01:41 GMT-0300 (BRT)</div>
<h1 class="title-post">Arrow Functions and their scope</h1>
<div class="centering">
<ul class="tags-post">
<li class="item-tag-post"><a href="#">scope</a></li>
<li class="item-tag-post"><a href="#">article</a></li>
<li class="item-tag-post"><a href="#">basics</a></li>
</ul>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-12">
<div class="article-content">
<aside class="share-post">
<a href="#" class="share-face share-item" title="Share this post"><img src="assets/images/icon-face-header.png" alt="icon facebook"></a>
<a href="#" class="share-twitter share-item" title="Tweet this post"><img src="assets/images/icon-twitter-header.png" alt="icon twitter"></a>
</aside>
<p>The example above may look a bit confusing, but it is actually a TDZ violation too -- that is because <a href="https://github.com/google/traceur-compiler/issues/1376">default parameters are evaluated in an intermediate scope</a> which exists between the parent and inner scope of the given function. The <code>a</code> and <code>b</code> parameters are bindings of this (intermediate) scope and are initialized from left to right, hence when <code>a</code>'s initializer tries to read <code>b</code>, the <code>b</code> identifier resolves to the <code>b</code> binding in the current scope (the intermediate scope) which is uninitialized at that point and thus throws a <code>ReferenceError</code> due to the TDZ semantics.</p>
<p>As another example, subclasses (created with <code>class x extends y {}</code>)'s constructors that try to access <code>this</code> before calling the <code>super</code> constructor will throw a TDZ <code>ReferenceError</code>. That is because as long as a subclass's constructor has not yet called <code>super()</code> its <code>this</code> binding is considered uninitialized. Likewise, if a subclass constructor execution reaches the end of the constructor code without calling <code>super()</code>, the constructor would (like any other constructor) implicitly try to <code>return this;</code>, which would then throw a TDZ <code>ReferenceError</code> as <code>this</code> is still uninitialized. Reference: <a href="https://github.com/tc39/ecma262/blob/master/workingdocs/ES6-super-construct%3Dproposal.md">ES6 super construct proposal</a>. <em>(note, though, that this proposal is only two weeks old at the time of writing, so it may be changed or discarded altogether from the final ES2015 spec.)</em></p>
<h2>TDZ is everywhere... Except in transpilers and engines</h2>
<p>Currently, transpilers such as 6to5 and Traceur do not enforce TDZ semantics whatsoever -- there are open issues in <a href="https://github.com/google/traceur-compiler/issues/1382">Traceur</a> and <a href="https://github.com/6to5/6to5/issues/563">6to5</a>, and just to be pendantic, 6to5 attempted to ship a quick and dirty TDZ static checking feature but had to retract it immediately afterwards due to <a href="https://github.com/6to5/6to5/issues/527">various bugs in the algorithm</a>. There are quite a few reasons transpilers didn't give much priority to TDZ enforcing yet:</p>
<ul>
<li><p><strong>Performance:</strong> identifiers that are covered by the TDZ semantics must have every read/write access operation wrapped by a runtime check in order to fully cover the TDZ semantics (see the nested scope example in the "gory details" section above). This issue can be worked around by having optional TDZ checking transformers that are only enabled in a development environment -- this should work fine as long as your code doesn't expect TDZ <code>ReferenceError</code>s being thrown in order to work properly (which should be a rare enough use case).</p></li>
<li><p><strong>Cost/benefit:</strong> Implementing proper TDZ checking takes some time and effort that could be spent writing transformers for new features or improving existing ones.</p></li>
<li><p><strong>It is impossible to catch all possible user errors</strong>: most transpilers' goal is to transpile <em>valid</em> ES.next to valid ES.current, so they expect you to know what you're doing. It would take a nearly infinite amount of time to try to catch all kinds of errors, gibberish and marginal error edge cases that an user can input into a transpiler.</p></li>
</ul>
<h2>And what about <code>var</code>?</h2>
<p>The Temporal Dead Zone semantics can be very useful by providing error feedback to the developer instead of yielding unexpected results (as ES5 code may currently do) in cases where your code may accidentally access uninitialized bindings. Just be aware of these semantics when using a transpiler that does not enforce TDZ, as you may be writing broken code without knowing it.</p>
<p>Or, just in case you're really afraid of TDZ -- which you shouldn't be, seeing as most of the time the errors will be clear and easy to fix once transpilers/engines implement the TDZ semantics --, you may as well keep using <code>var</code> for the time being which does not have TDZ semantics. <code>;)</code></p>
</div>
</div>
</div>
<div class="row row-comments">
<div class="col-md-12 title-testemonials title-comments-article">
<div class="centering">
<img class="icon-comments floating" src="assets/images/icon-content-comments.png" alt="icon comments">
<h2>Comments</h2>
</div>
</div>
<div class="col-xs-12">
<div class="comments-container"></div>
</div>
</div>
<div class="row row-other-posts">
<div class="col-md-12 title-testemonials title-comments-article">
<div class="centering">
<svg version="1.1" class="thunder" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="17.191px" height="29.535px" viewBox="0 0 17.191 29.535" enable-background="new 0 0 17.191 29.535" xml:space="preserve">
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#FCCF0F" points="17.191,0 1.438,15.457 6.365,15.466 0,29.535
17.166,12.907 11.773,12.661 "/>
</svg>
<h2>Other Posts</h2>
</div>
</div>
<div class="list-other-posts">
<article class="col-md-4 col-sm-6 col-xs-12 post-normal item-post post-fade-6">
<div class="container-post">
<aside class="share-post">
<a href="#" class="share-face share-item" title="Share this post"><img src="assets/images/icon-face-header.png" alt="icon facebook"></a>
<a href="#" class="share-twitter share-item" title="Tweet this post"><img src="assets/images/icon-twitter-header.png" alt="icon twitter"></a>
</aside>
<div class="date-post">Tue Sep 23 2014 01:01:41 GMT-0300 (BRT)</div>
<h1 class="title-post"><a href="#">ES6 interview with David Herman</a></h1>
<p class="intro-post">We did a nice interview with David Herman about his thoughts about ES6. David is the principal researcher and founder of Mozilla Research, where he works to expand ...</p>
<section class="footer-post">
<ul class="tags-post">
<li class="item-tag-post"><a href="#">es6</a></li>
<li class="item-tag-post"><a href="#">interview</a></li>
</ul>
<div class="author-post">
<div class="avatar-author"><img src="assets/images/img-avatar-post.jpg" alt="avatar post"></div>
<div class="info-author">
<span>Posted by</span>
<a href="#" class="author">Jaydson Gomes</a>
</div>
</div>
</section>
</div>
</article>
<article class="col-md-4 col-sm-6 col-xs-12 post-normal item-post post-fade-7">
<div class="container-post">
<aside class="share-post">
<a href="#" class="share-face share-item" title="Share this post"><img src="assets/images/icon-face-header.png" alt="icon facebook"></a>
<a href="#" class="share-twitter share-item" title="Tweet this post"><img src="assets/images/icon-twitter-header.png" alt="icon twitter"></a>
</aside>
<div class="date-post">Tue Sep 23 2014 01:01:41 GMT-0300 (BRT)</div>
<h1 class="title-post"><a href="#">Practical Workflows for ES6 Modules, Fluent 2014 </a></h1>
<section class="footer-post">
<ul class="tags-post">
<li class="item-tag-post"><a href="#">modules</a></li>
<li class="item-tag-post"><a href="#">talks</a></li>
</ul>
<div class="author-post">
<div class="avatar-author"><img src="assets/images/img-avatar-post.jpg" alt="avatar post"></div>
<div class="info-author">
<span>Posted by</span>
<a href="#" class="author">Jaydson Gomes</a>
</div>
</div>
</section>
</div>
</article>
<article class="col-md-4 col-sm-6 col-xs-12 post-normal item-post post-fade-8">
<div class="container-post">
<aside class="share-post">
<a href="#" class="share-face share-item" title="Share this post"><img src="assets/images/icon-face-header.png" alt="icon facebook"></a>
<a href="#" class="share-twitter share-item" title="Tweet this post"><img src="assets/images/icon-twitter-header.png" alt="icon twitter"></a>
</aside>
<div class="date-post">Tue Sep 23 2014 01:01:41 GMT-0300 (BRT)</div>
<h1 class="title-post"><a href="#">Hello World</a></h1>
<p class="intro-post">Hello everybody, welcome to ES6Rocks! The mission here is to discuss about JavaScript's next version , aka Harmony or ES.next. <br><br> ES6 is awesome, and is coming soon.</p>
<section class="footer-post">
<ul class="tags-post">
<li class="item-tag-post"><a href="#">es6</a></li>
<li class="item-tag-post"><a href="#">interview</a></li>
</ul>
<div class="author-post">
<div class="avatar-author"><img src="assets/images/img-avatar-post.jpg" alt="avatar post"></div>
<div class="info-author">
<span>Posted by</span>
<a href="#" class="author">Jaydson Gomes</a>
</div>
</div>
</section>
</div>
</article>
</div>
</div>
<div class="row row-button">
<button class="button-post button-top">
<img src="assets/images/icon-button-top.png" alt="icon scroll to top">
<span>Scroll to Top</span>
</button>
</div>
</div>
</div>
<footer class="footer">
<div class="container">
<div class="row">
<div class="col-md-12 credits">
<div class="right">
<span class="created">Brought to you by <a href="http://jaydson.org/" target="_blank">Jaydson Gomes</a> and the <a href="https://github.com/es6rocks/es6rocks.github.io/graphs/contributors" targer="_blank">awesome contributors</a>.</span>
<span class="designed">Designed by <a href="https://www.linkedin.com/in/italowaxman" target="_blank">Ítalo Waxman</a></span>
</div>
</div>
</div>
<div class="row">
<div class="col-md-12 footer-content">
<div class="info-footer">
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="136.478px" height="149.494px" viewBox="0 0 136.478 149.494" enable-background="new 0 0 136.478 149.494"
xml:space="preserve">
<path fill="#010101" d="M66.176,0C36.584-0.095,12.514,12.499,3.365,32.866c-8.992,20.019,1.346,52.944,15.578,76.694
c14.959,24.955,33.076,39.884,48.471,39.934h0.012c19.461,0.054,41.201-23.621,54.113-47.108
c11.76-21.396,20.688-50.884,10.469-69.479C120.908,12.706,95.682,0.096,66.176,0z M114.961,98.38
c-13.975,25.424-33.514,43.153-47.514,43.114l-0.021,4l0.014-4c-12.588-0.04-28.707-13.913-42.068-36.204
C9.846,79.384,3.621,51.008,10.234,36.285C17.99,19.018,39.939,7.916,66.15,8c26.406,0.085,49.674,11.435,59.279,28.915
C132.512,49.802,128.402,73.928,114.961,98.38z"/>
<polygon fill-rule="evenodd" clip-rule="evenodd" fill="#FECF0A" points="77.082,19.945 61.328,35.402 66.256,35.412 59.891,49.48
77.057,32.852 71.664,32.606 "/>
<line fill="none" stroke="#010101" stroke-width="0.25" stroke-miterlimit="10" x1="40.463" y1="57.562" x2="96.512" y2="57.562"/>
<g>
<g>
<path fill="#010101" d="M44.693,108.227c0-0.104,0.027-0.187,0.078-0.247c0.053-0.062,0.131-0.093,0.234-0.094h4.609
c0.49,0,0.945,0.096,1.373,0.285c0.432,0.189,0.801,0.447,1.123,0.771c0.316,0.325,0.566,0.705,0.75,1.141s0.275,0.9,0.275,1.393
c0,0.335-0.045,0.653-0.129,0.957c-0.092,0.302-0.217,0.586-0.373,0.849c-0.154,0.263-0.342,0.503-0.559,0.716
c-0.217,0.215-0.451,0.398-0.709,0.551l1.832,3.574c0.035,0.068,0.078,0.15,0.129,0.243c0.051,0.094,0.08,0.175,0.08,0.245
c0,0.078-0.027,0.139-0.076,0.18c-0.051,0.042-0.117,0.062-0.203,0.062h-2.447c-0.08,0-0.15-0.023-0.217-0.074
c-0.064-0.049-0.107-0.115-0.123-0.198l-1.734-3.375h-1.154v3.331c0,0.211-0.109,0.316-0.328,0.316h-2.119
c-0.094,0-0.172-0.025-0.229-0.076c-0.057-0.053-0.084-0.132-0.084-0.24V108.227z M50.277,111.505
c0-0.146-0.027-0.296-0.078-0.442c-0.053-0.149-0.127-0.284-0.223-0.407c-0.094-0.122-0.209-0.227-0.342-0.311
s-0.283-0.137-0.443-0.162c-0.131-0.01-0.256-0.018-0.375-0.025c-0.115-0.008-0.242-0.012-0.383-0.012h-0.98v2.711h1.314
c0.082,0,0.158-0.002,0.227-0.008c0.066-0.004,0.139-0.012,0.221-0.021c0.164-0.02,0.316-0.07,0.447-0.152
c0.133-0.08,0.248-0.182,0.336-0.303c0.092-0.12,0.16-0.256,0.207-0.405C50.252,111.815,50.277,111.662,50.277,111.505z"/>
<path fill="#010101" d="M53.363,113.382c0-0.523,0.064-1.023,0.191-1.504c0.131-0.48,0.311-0.931,0.551-1.352
c0.238-0.421,0.521-0.803,0.854-1.148c0.33-0.344,0.699-0.639,1.104-0.883c0.404-0.243,0.836-0.432,1.303-0.568
c0.463-0.135,0.945-0.203,1.451-0.203c0.498,0,0.984,0.068,1.447,0.203c0.467,0.137,0.9,0.325,1.307,0.568
c0.404,0.244,0.773,0.539,1.104,0.883c0.336,0.346,0.621,0.728,0.855,1.148s0.418,0.871,0.549,1.352s0.199,0.98,0.199,1.504
c0,0.521-0.068,1.021-0.199,1.502c-0.131,0.479-0.314,0.928-0.549,1.344s-0.52,0.796-0.855,1.138
c-0.33,0.341-0.699,0.636-1.104,0.883c-0.406,0.247-0.84,0.435-1.307,0.567c-0.463,0.134-0.949,0.2-1.447,0.2
c-0.506,0-0.988-0.066-1.451-0.2c-0.467-0.133-0.898-0.32-1.303-0.567s-0.773-0.542-1.104-0.883
c-0.332-0.342-0.615-0.722-0.854-1.138c-0.24-0.416-0.42-0.864-0.551-1.344C53.428,114.403,53.363,113.903,53.363,113.382z
M56.123,113.374c0,0.408,0.068,0.789,0.201,1.145c0.133,0.354,0.318,0.663,0.559,0.926c0.238,0.264,0.523,0.472,0.85,0.621
c0.328,0.15,0.691,0.225,1.084,0.225s0.758-0.074,1.086-0.225c0.328-0.149,0.615-0.357,0.854-0.621
c0.24-0.263,0.428-0.572,0.559-0.926c0.133-0.355,0.199-0.736,0.199-1.145c0-0.404-0.066-0.785-0.199-1.142
c-0.131-0.356-0.318-0.669-0.559-0.934c-0.238-0.265-0.525-0.476-0.854-0.628s-0.693-0.23-1.086-0.23s-0.756,0.078-1.084,0.23
c-0.326,0.152-0.611,0.363-0.85,0.628c-0.24,0.265-0.426,0.577-0.559,0.934S56.123,112.97,56.123,113.374z"/>
<path fill="#010101" d="M73.238,108.685c0.078,0.049,0.141,0.113,0.178,0.191c0.039,0.079,0.029,0.173-0.021,0.28l-1.203,1.772
c-0.053,0.084-0.109,0.133-0.17,0.145c-0.059,0.012-0.131-0.008-0.217-0.062c-0.232-0.182-0.488-0.323-0.771-0.422
c-0.277-0.098-0.574-0.146-0.891-0.146c-0.391,0-0.748,0.076-1.074,0.229c-0.33,0.152-0.615,0.363-0.85,0.628
c-0.238,0.265-0.424,0.575-0.557,0.931c-0.133,0.354-0.199,0.732-0.199,1.137c0,0.403,0.066,0.781,0.199,1.133
c0.133,0.354,0.318,0.66,0.557,0.924c0.234,0.264,0.52,0.473,0.85,0.625c0.326,0.152,0.684,0.229,1.074,0.229
c0.316,0,0.615-0.051,0.898-0.151c0.287-0.101,0.543-0.243,0.781-0.425c0.082-0.055,0.156-0.076,0.211-0.067
c0.055,0.011,0.113,0.056,0.172,0.134l1.217,1.816c0.053,0.108,0.061,0.199,0.023,0.273s-0.098,0.135-0.178,0.186
c-0.447,0.309-0.93,0.549-1.445,0.719s-1.061,0.255-1.631,0.255c-0.504,0-0.986-0.066-1.451-0.199
c-0.461-0.134-0.893-0.321-1.299-0.568c-0.408-0.247-0.773-0.542-1.102-0.883c-0.332-0.342-0.617-0.722-0.855-1.138
c-0.236-0.416-0.42-0.864-0.547-1.344c-0.129-0.48-0.193-0.98-0.193-1.502c0-0.523,0.064-1.023,0.193-1.504
c0.127-0.48,0.311-0.931,0.547-1.352c0.238-0.421,0.523-0.803,0.855-1.148c0.328-0.344,0.693-0.639,1.102-0.883
c0.406-0.242,0.838-0.432,1.299-0.567c0.465-0.136,0.947-0.204,1.451-0.204c0.57,0,1.111,0.082,1.617,0.248
C72.312,108.136,72.791,108.374,73.238,108.685z"/>
<path fill="#010101" d="M74.336,108.211c0-0.089,0.027-0.165,0.082-0.228c0.057-0.064,0.131-0.098,0.232-0.098h2.104
c0.07,0,0.146,0.03,0.227,0.089c0.076,0.06,0.117,0.139,0.117,0.236v4.024c0.516-0.688,1.025-1.367,1.525-2.037
s1.006-1.35,1.52-2.038c0.051-0.085,0.119-0.151,0.201-0.204c0.082-0.051,0.166-0.078,0.244-0.078h2.711
c0.115,0,0.174,0.038,0.174,0.112c0,0.049-0.027,0.108-0.08,0.177l-3.357,4.586l3.713,5.791c0.055,0.083,0.082,0.148,0.082,0.198
c0,0.074-0.057,0.111-0.16,0.111h-2.693c-0.08,0-0.162-0.024-0.238-0.075c-0.082-0.047-0.145-0.115-0.197-0.198
c-0.252-0.354-0.48-0.694-0.688-1.019c-0.209-0.326-0.41-0.649-0.604-0.973c-0.195-0.32-0.393-0.647-0.592-0.978
c-0.199-0.329-0.418-0.677-0.654-1.042l-0.906,1.079v2.88c0,0.217-0.117,0.325-0.344,0.325h-2.098c-0.213,0-0.32-0.108-0.32-0.325
V108.211z"/>
<path fill="#010101" d="M85.73,115.308c0.082,0.07,0.186,0.162,0.311,0.277c0.127,0.117,0.27,0.23,0.432,0.344
c0.24,0.168,0.484,0.299,0.721,0.392c0.238,0.093,0.486,0.14,0.748,0.14c0.244,0,0.447-0.027,0.609-0.084
c0.166-0.057,0.297-0.132,0.391-0.225c0.094-0.096,0.162-0.202,0.201-0.326c0.039-0.122,0.062-0.252,0.062-0.391
c0-0.152-0.059-0.288-0.166-0.409c-0.115-0.12-0.25-0.228-0.412-0.321s-0.33-0.174-0.508-0.239
c-0.176-0.067-0.328-0.122-0.455-0.165c-0.572-0.208-1.07-0.431-1.498-0.668c-0.428-0.239-0.785-0.506-1.068-0.799
c-0.285-0.293-0.5-0.614-0.645-0.965c-0.143-0.354-0.213-0.744-0.213-1.178c0-0.457,0.09-0.873,0.27-1.247
c0.178-0.374,0.43-0.694,0.764-0.96c0.328-0.265,0.729-0.471,1.193-0.615s0.986-0.219,1.562-0.219
c0.432,0,0.846,0.051,1.242,0.152c0.398,0.101,0.787,0.262,1.172,0.484c0.162,0.098,0.314,0.2,0.461,0.305
c0.146,0.107,0.27,0.209,0.383,0.308c0.109,0.099,0.193,0.192,0.258,0.28c0.066,0.089,0.098,0.166,0.098,0.229
c0,0.064-0.014,0.125-0.045,0.178c-0.031,0.055-0.08,0.115-0.139,0.186l-1.092,1.202c-0.082,0.085-0.162,0.126-0.244,0.126
c-0.066,0-0.127-0.02-0.184-0.059c-0.053-0.039-0.113-0.089-0.18-0.147l-0.066-0.06c-0.092-0.084-0.199-0.17-0.314-0.258
c-0.113-0.089-0.24-0.17-0.371-0.24c-0.137-0.071-0.277-0.131-0.424-0.178s-0.297-0.07-0.451-0.07
c-0.158,0-0.301,0.014-0.443,0.041c-0.133,0.027-0.256,0.07-0.357,0.129c-0.107,0.06-0.191,0.137-0.252,0.232
c-0.062,0.098-0.094,0.213-0.094,0.352s0.033,0.257,0.1,0.357c0.066,0.102,0.166,0.195,0.301,0.281
c0.133,0.086,0.297,0.168,0.492,0.242c0.199,0.078,0.428,0.16,0.691,0.249c0.506,0.173,0.969,0.354,1.395,0.543
c0.424,0.188,0.791,0.413,1.102,0.672c0.307,0.257,0.549,0.567,0.723,0.927s0.26,0.795,0.26,1.307c0,0.541-0.105,1.033-0.32,1.475
c-0.213,0.439-0.506,0.814-0.881,1.125s-0.811,0.551-1.314,0.721c-0.506,0.169-1.045,0.254-1.627,0.254
c-0.547,0-1.084-0.101-1.611-0.304c-0.529-0.202-1.018-0.474-1.477-0.814c-0.189-0.144-0.352-0.284-0.48-0.421
c-0.131-0.139-0.234-0.25-0.311-0.334l-0.021-0.023c-0.006-0.009-0.01-0.016-0.014-0.018s-0.01-0.006-0.016-0.012
c-0.004-0.01-0.01-0.016-0.014-0.018c-0.004-0.003-0.01-0.006-0.016-0.012c-0.109-0.123-0.162-0.223-0.162-0.297
c0-0.083,0.053-0.177,0.162-0.281l1.236-1.219c0.098-0.074,0.18-0.109,0.238-0.109c0.047,0,0.09,0.015,0.139,0.044
S85.666,115.249,85.73,115.308z"/>
</g>
<g>
<path fill="#010101" d="M63.943,66.568h-7.027c-0.32,0.027-0.43,0.142-0.43,0.488v25.245c0,0.455-0.098,0.889-0.287,1.29
c-0.182,0.389-0.432,0.735-0.738,1.026c-0.307,0.287-0.664,0.518-1.066,0.69c-0.979,0.409-2.027,0.317-2.768-0.065
c-0.389-0.201-0.729-0.426-1.014-0.669l-0.717-0.604c-0.166-0.142-0.279-0.232-0.527-0.101c-0.109,0.056-0.209,0.124-0.311,0.216
l-4.141,4.016c-0.084,0.07-0.225,0.181-0.225,0.581c0,0.058,0,0.104,0.002,0.144c0.496,0.758,1.076,1.437,1.727,2.019
c0.658,0.586,1.379,1.087,2.143,1.489c0.762,0.397,1.58,0.703,2.432,0.908c2.275,0.546,4.725,0.356,6.852-0.566
c1.342-0.582,2.535-1.392,3.551-2.406c1.016-1.018,1.836-2.223,2.432-3.581s0.898-2.835,0.898-4.386V67.354
C64.729,66.774,64.523,66.568,63.943,66.568z"/>
<path fill="#010101" d="M91.459,87.919c-0.543-1.129-1.316-2.118-2.295-2.938c-0.994-0.831-2.195-1.563-3.572-2.177
c-1.406-0.626-2.963-1.232-4.623-1.802c-0.883-0.298-1.66-0.576-2.326-0.835c-0.688-0.266-1.277-0.556-1.75-0.862
c-0.498-0.32-0.887-0.686-1.148-1.085c-0.277-0.422-0.416-0.918-0.416-1.474c0-0.557,0.131-1.043,0.389-1.445
c0.252-0.39,0.592-0.706,1.012-0.944c0.393-0.223,0.852-0.387,1.363-0.488c0.984-0.193,2.16-0.229,3.234,0.112
c0.518,0.165,1.021,0.376,1.494,0.629c0.471,0.252,0.914,0.537,1.32,0.847c0.4,0.306,0.766,0.601,1.092,0.89l0.223,0.205
c0.203,0.178,0.389,0.332,0.561,0.455c0.1,0.07,0.201,0.104,0.318,0.104c0.16,0,0.334-0.145,0.453-0.268l3.643-4.018
c0.182-0.204,0.318-0.385,0.404-0.534c0.059-0.102,0.088-0.216,0.088-0.343c0-0.038-0.018-0.182-0.229-0.473
c-0.193-0.267-0.465-0.557-0.803-0.861c-0.352-0.318-0.768-0.653-1.236-0.995c-0.48-0.35-0.986-0.687-1.506-1.003
c-1.23-0.708-2.51-1.236-3.791-1.563c-1.285-0.326-2.646-0.491-4.045-0.491c-1.861,0-3.57,0.238-5.08,0.707
c-1.49,0.464-2.783,1.129-3.838,1.976c-1.039,0.837-1.852,1.86-2.414,3.037c-0.562,1.176-0.846,2.508-0.846,3.961
c0,1.375,0.229,2.639,0.68,3.754c0.449,1.11,1.137,2.145,2.043,3.074c0.916,0.94,2.082,1.809,3.467,2.582
c1.402,0.781,3.064,1.523,4.941,2.202c0.426,0.146,0.939,0.333,1.537,0.558c0.617,0.234,1.211,0.517,1.768,0.84
c0.58,0.334,1.08,0.728,1.488,1.168c0.461,0.493,0.697,1.069,0.697,1.71c0,0.496-0.076,0.987-0.227,1.46
c-0.164,0.494-0.436,0.928-0.811,1.294c-0.367,0.362-0.867,0.655-1.486,0.868c-1.248,0.431-3.262,0.451-4.896-0.192
c-0.822-0.323-1.668-0.782-2.514-1.364c-0.561-0.394-1.064-0.795-1.498-1.193c-0.418-0.383-0.76-0.688-1.025-0.917
c-0.201-0.178-0.369-0.312-0.51-0.397c-0.078-0.049-0.146-0.074-0.191-0.074c-0.006,0-0.15,0.002-0.512,0.271l-4.078,4.035
c-0.375,0.354-0.402,0.539-0.402,0.587c0,0.002,0.004,0.181,0.402,0.635c0.049,0.036,0.09,0.077,0.125,0.124
c0.041,0.036,0.078,0.076,0.109,0.123l0.029,0.029c0.27,0.297,0.613,0.666,1.049,1.125c0.418,0.445,0.939,0.902,1.547,1.358
c1.484,1.108,3.105,2.004,4.822,2.661c3.512,1.348,7.344,1.222,10.5,0.158c1.627-0.549,3.055-1.33,4.248-2.322
c1.189-0.991,2.139-2.205,2.818-3.605c0.68-1.398,1.025-2.985,1.025-4.716C92.281,90.444,92.004,89.046,91.459,87.919z"/>
</g>
</g>
</svg>
<span class="info-copyright">Content licensed under <a href="https://creativecommons.org/" targer="_blank">Creattive Commons</a> - Code licensed under <a href="http://opensource.org/licenses/MIT" target="_blank">MIT</a> Static website proudly powered by <a href="https://github.com/es6rocks/harmonic" target="_blank">Harmonic</a></span>
</div>
<aside class="social">
<div class="twitter item-social-footer">
<a href="https://twitter.com/share" class="twitter-share-button" data-url="http://es6rocks.com/" data-text="Articles, news, tools and tutorials about #ES6" data-via="es6rocks">Tweet</a>
<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
</div>
<div class="facebook item-social-footer">
<div class="fb-like" data-href="http://es6rocks.com/" data-layout="button_count" data-action="like" data-show-faces="false" data-share="false"></div>
</div>
<div class="gplus item-social-footer">
<div class="g-plusone" data-size="medium" data-href="http://es6rocks.com/"></div>
<script type="text/javascript">
(function() {
var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
po.src = 'https://apis.google.com/js/platform.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
})();
</script>
</div>
<div class="github item-social-footer">
<iframe src="http://ghbtns.com/github-btn.html?user=es6rocks&repo=es6rocks.github.io&type=watch&count=true"
allowtransparency="true"
frameborder="0"
scrolling="0"
width="110"
height="20">
</iframe>
</div>
</aside>
<div class="js-footer">
<a href="#"><img src="assets/images/icon-logo-js.png" alt="icon JS" title="Javascript"></a>
</div>
</div>
</div>
</div>
</footer>
</div>
<!-- Scripts minificados e concatenados -->
<script src="assets/js/_build/all.min.js"></script>
<!-- Facebook Script -->
<div id="fb-root"></div>
<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/pt_BR/sdk.js#xfbml=1&version=v2.0";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
<!-- Google Analytics: Altere UA-XXXXX-X pelo ID do seu site. -->
<script>
(function(b,o,i,l,e,r){b.GoogleAnalyticsObject=l;b[l]||(b[l]=
function(){(b[l].q=b[l].q||[]).push(arguments)});b[l].l=+new Date;
e=o.createElement(i);r=o.getElementsByTagName(i)[0];
e.src='//www.google-analytics.com/analytics.js';
r.parentNode.insertBefore(e,r)}(window,document,'script','ga'));
ga('create','UA-51061271-1');ga('send','pageview');
</script>
</body>
</html>