JS Test: Hoisting Order

Last modified by Sergiu Dumitriu on 2018/10/10 17:05

Task: What do the following code snippets return? Why?

function a(x) {
return x * 2;
}
var a = 5;
a;

var a = 5;
function a(x) {
return x * 2;
}
a;

function a(x) {
return x * 2;
}
var a;
a;

(function() {
var a = 5;
function a(x) {
return x * 2;
}
return a;
})();

(function() {
function a(x) {
return x * 2;
}
var a;
return a;
})();