What is the difference between for in and For of loops?

Question

When to use for in, for of loops and what is the relation to for loop.

Answer 1

Pablo Escobar ll
Try with ThisOne! ;)
https://code.sololearn.com/W7A6tG5swp5C/?ref=app

https://www.sololearn.com/post/48506/?ref=app

Answer 2

Pablo Escobar ll
One more example, where use for..of Loop!;)👍

https://code.sololearn.com/WxEg6de0NtKy/?ref=app

Answer 3

for … of Loops

ES6 adds a way to iterate over each of the values in an array. This is different from the existing for ... in loop that loops over the key/index.

let a = ['a', 'b', 'c', 'd' ];
// ES6
for ( var val of a ) {
console.log( val );
} // "a" "b" "c" "d"
// pre-ES6
for ( var idx in a ) {
console.log( idx );
} // 0 1 2 3

Using the new for ... of loop saves adding a let val = a[idx] inside each loop.
https://www.sololearn.com/learn/JavaScript/2970/

Answer 4

Pablo Escobar ll Check out my Code, it's edited!

for..in loops over the keys/indexes in the array, while for..of loops over the values in array.

The value you loop over with for..of must be a value which can be coerced/boxed to an object!

Answer 5

Hope this helps https://code.sololearn.com/WIpjWv8FZfJ7/?ref=app

Answer 6

Danijel Ivanović
So for..in used for objects and for..Of for arrays.

Answer 7

Danijel lvanovic still confusing

Answer 8

D'lite that's okay