JavaScript What creates a function in a function? what function creates the frame that holds the drawing,what

Why is the result of the following code 1 and not 10? Why doesn't the function bar() change the value, even though there is a return statement.

var foo = 1;
function bar() {
  foo = 10;
  return;

  function foo() {}
}

bar();
alert(foo);
Answer:1

This is because function definitions are hoisted to the top of their scope, so the foo assignment inside bar() is actually referring to the local function that has an empty body.

You can read more about this here

Answer:2

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