Function declarations and variable declarations hoisted, which one hoisted first?

Question

I came to know 'Function declarations and variable declarations are always moved (“hoisted”) invisibly to the top of their containing scope by the JavaScript interpreter.' -- JavaScript Scoping and Hoisting.

But which one hoisted first?

As a result of someone asked me at SegmentFault, I should give him a exact answer.

How can that matter ? "Hoisting" is a confusing concept. It's simpler to see it this way: "the scope of a variable declared with var or a function declaration is the whole function". Edit: thing which makes it more complex (and probably justifies the question) is that variable declaration moves with the assignation, contrary to the variable "equivalent". — Denys Séguret, Jan 06 '17 at 09:36

score -1 · Answer 1 · edited May 23 '17 at 10:30

-1

function test() {
   return foo;
   var foo = true;
   function foo(){}

}

console.log(typeof test()) // function

functions are hoisted first See here for more informations

edited May 23 '17 at 10:30

Community

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answered Jan 06 '17 at 09:37

Axnyff

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This is not hoisting – Denys Séguret Jan 06 '17 at 09:38
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This doesn't prove anything. The assignment `foo = true` is never executed because the function returns beforehand. – Felix Kling Jan 06 '17 at 10:02
The assignment is never executed indeed. This is about hoisting though – Axnyff Jan 06 '17 at 10:37
So, how does this example prove that functions are "hoisted first"? In other words, how does this prove that the order is `function foo() {}; var foo;` and not `var foo; function foo() {}` ? – Felix Kling Jan 06 '17 at 19:34
Is my answer different from [that one](http://stackoverflow.com/a/28246653/4949918) ? – Axnyff Jan 07 '17 at 10:33

Function declarations and variable declarations hoisted, which one hoisted first?

1 Answers1