6 ms·
I usually think of "hoisting" as promoting a var outside of its containing scope to within the next block. e.g., function() { var a = 2; // b is visible h
by robcee 13y ago
I usually think of "hoisting" as promoting a var outside of its containing scope to within the next block.
e.g.,
function() {
var a = 2;
// b is visible here
if (a == 2) {
var b = 3;
}
}
- iMark 13y agoHoisting still occurs within a scope such that, for example, a function defined at the end of a block can be called at the top.
- robcee 13y agoright. The point I was trying to illustrate was that the inner variable declared with a "var" keyword was visible outside its containing block. If I'd used "let" there, it would not be.