Weird explanation in MDN Docs?
So here, they explain how the
for...of loop works. And they essentially said that it takes the first element in fruits and sets that value to the fruit variable, then runs the JS code in the curly braces.
The weird thing comes when this gets repeated for the second element. So the fruit variable gets re-initialized to the second element in fruits, but the problem is, fruit is a const, so how does this work?
Any explanation to help understand this would be appreciated, thanks! 🙂
3 Replies
const is block-scoped. everything within the { } is a block
so it will just redeclare the variableconst - JavaScript | MDN
Constants are block-scoped, much like variables declared using the
let
keyword. The value of a constant can't be changed through reassignment (i.e. by using the assignment operator), and it can't be redeclared (i.e. through a variable declaration). However, if a constant is an object or array its properties or items can be updated or removed.
Thanks! 🙂