Page 124 - JavaScript

The entries() method returns a new Array Iterator object that contains the key/value pairs for each
index in the array.

6

var letters = ['a','b','c'];

for(const[index,element] of letters.entries()){
console.log(index,element);
}

result

0 "a"
1 "b"
2 "c"

Note: This method is not supported in Internet Explorer.

Portions of this content from Array.prototype.entries by Mozilla Contributors licensed under CC-
by-SA 2.5

Read Arrays online: https://riptutorial.com/javascript/topic/187/arrays

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