Hoisting (HS01)
1: function example1() {
2: console.log(x); // Output: undefined (x is hoisted but not yet initialized)
3: var x = 10;
4: console.log(x); // Output: 10
5: }
6: example1();
7: function example2() {
8: var x = 10;
9: var x = 20; // Redeclaration - last initialization wins!
10: console.log(x); // Output: 20
11: }
12:
13: example2();
Redeclaring var in the same scope is allowed. The most recent initialization takes precedence. 10 20
Hoisting context:
ES6 context:
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http://www.vb-net.com/JavascriptES6/HS01.htm
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