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);
// --> 4Installation
npm i @writetome51/get-reverse-index
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import {getReverseIndex} from '@writetome51/get-reverse-index';