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test.html
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test.html
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<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script src="jpath.js" /></script>
</head>
<body>
<script>
var myobj = [
{
"dataOptions": {
"id": "id1",
"count": "10"
},
"name": "Leon",
"children": [
{
"dataOptions": {
"id": "id2",
"count": "10"
},
"name": "Leon",
"children": [],
"isExpanded": false
},
{
"dataOptions": {
"id": "id2",
"count": "10"
},
"name": "Leon",
"children": [],
"isExpanded": false
}
],
"isExpanded": false
},
{
"dataOptions": {
"id": "id3",
"count": "10"
},
"name": "Leon",
"children": [],
"isExpanded": false
},
{
"dataOptions": {
"id": "id4",
"count": "10"
},
"name": "Leon",
"children": [],
"isExpanded": false
}
];
/*
function pr (v){document.write(v + '<br>'); }
pr(myobj.rss['@version']);
var jp = new JPath( myobj );
pr(jp.$('rss').$('@version').json);
pr(jp.$('rss/@version').json);
pr(jp.query('rss/@version'));
pr(jp.$('rss').$('item').$(5).$('title').json);
pr(jp.query('rss/item[5]/title'));
pr(jp.query('/rss/@max'));
pr(jp.$('rss').$('item').$(function(j){ with(j){return($('active').json);} }).$('title').json);
pr(jp.$('rss/item').f("!$('active').json").$('title').json);
pr(jp.query('rss/*[active]/title'));
//pr(jp.query('rss/item[enclosure/@filesize > /rss/@max - 500]/title'));
pr(jp.$('rss').$('item').f("$('enclosure').$('@filesize').json > parent().$('rss/@max').json-500").$('title').json);
pr(jp.$('rss/item').f('position() == 1').$('title').json);
pr(jp.query('rss/item[ position() == 1 ]/title'));
pr(jp.$('rss/item').f('last()').$('title').json);
//token types // midpoint node selection, endpoint node selection, predicate condition
var a = new JPath(window);
/*
/rss/item[active = true]
/rss/item[ count(posts) > 3 ]
jp.$('rss').$('item').$(function(j){ with(j){ count($('posts)) > 3 } }).json
/rss/item[last(./posts)]
anything that matches /node/node]
*/
//pr(js.query('/rss/item[active]/title'));
// query('rss/item/[acti]/title
var jp = new JPath(myobj);
test = jp.$$('*').$(function(n){ return(n.$('dataOptions/id').json == 'id2'); }).json;
test = jp.query('//*[dataOptions/id = "id2"]');
alert(test[0].name);
</script>
</body>
</html>