Swaps two chars in a string by indexes.
Install using npm:
npm install --save swap-charor using yarn
yarn add swap-charSwaps chars on from and to indexes and returns a new string.
str: string
A string to perform a char swap on.
from: number
The zero-based index from where to take a char. If negative, it is treated as str.length + from. (For example, if from is -3 it is treated as str.length - 3).
If from is greater than or equal to str.length, swapChar() returns str without any changes.
to: number
The zero-based index at which to put a char. If negative, it is treated as str.length + to. (For example, if to is -3 it is treated as str.length - 3).
If to is greater than or equal to str.length, swapChar() returns str without any changes.
import swapChar from 'swap-char';
swapChar('abc', 0, 1); // <~ 'bac'
swapChar('abc', 2, 0); // <~ 'cba'
// with negative indexes
swapChar('abc', 0, -1); // <~ 'cba'
swapChar('abc', -2, -1); // <~ 'acb'
// with incorrect indexes - returns the same string
swapChar('abc', 50, 0); // <~ 'abc'
swapChar('abc', 2, Infinity); // <~ 'abc'Max Kanaradze