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codeimpossible/1-hoisting.js

Last active August 29, 2015 14:23
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Variable hoisting
Raw
1-hoisting.js
var variable = "global";
function doSomething() {
console.log(variable);
var variable = 'local';
console.log(variable);
}
doSomething();
// output
// ----------------
// undefined
// "local"
//
// "2-hoisted.js" is what the compiler ran.
Raw
2-hoisted.js
var variable = "global";
function doSomething() {
var variable;
console.log(variable);
variable = 'local';
console.log(variable);
}
doSomething();
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