1.0.0 • Published 4 years ago
@writetome51/get-reverse-index v1.0.0
getReverseIndex( index, arrayLength): number
Receives array index
and returns the new index that same item would have
if the array's order were reversed.
Examples
let arr = ['a', 'b', 'c', 'd', 'e'];
let index = arr.indexOf('d');
getReverseIndex(index, arr.length);
// --> 1
arr = [7, 2, 6, 9, 3, 10];
index = arr.indexOf(2);
getReverseIndex(index, arr.length);
// --> 4
Installation
npm i @writetome51/get-reverse-index
Loading
import {getReverseIndex} from '@writetome51/get-reverse-index';
1.0.0
4 years ago