ders01.js

// VAR - LET - CONST

/* let age;
console.log(age);

age = 42;
console.log(age);

const name = "Arin";

console.log(name); */

// name = "Elis";

/* let name = "Arin";
console.log(name);

name = "Elis"; 
console.log(name); */

/* let str = "";

for ( let i =0; i<10; i++) {
    str = str.concat(i);
    console.log(str);
} */

/* const myArr = [1, 2, 3];
console.log(myArr);
myArr.pop();
console.log(myArr); */

/* const student = {
    name: "Arin",
    age:5
}

console.log(student);

Object.freeze(student);

student.name = "Elis";
console.log(student);  */

/* student = {
    name: "Elis",
    age:5 
}
 */

/* var age = 40;
console.log(age);

age = 42;
console.log(age) */

// VAR --> global scope / functional scope 

/* var x = 1;
console.log(x);

if (x === 1 ) {
    var x = 10;
    console.log(x)
}

console.log(x) */

// LET --> block scope

/* let y = 1;
console.log(y);

if (y === 1 ) {
    let y = 10;
    console.log(y)
}

console.log(y) */

/* const x = 10;
console.log(window.x); */

// HOISTING

// var x;

/* console.log(x);

var x = 10;

console.log(x); */

// let y; XXXXX

/* const y = 102;
console.log(y);
 */