pad-left/index.js

Left pad a string with zeros or a specified string. Fastest implementation.

/*!
 * pad-left <https://github.com/jonschlinkert/pad-left>
 *
 * Copyright (c) 2014-2015, Jon Schlinkert.
 * Licensed under the MIT license.
 */

'use strict';

var repeat = require('repeat-string');

module.exports = function padLeft(str, num, ch) {
  ch = typeof ch !== 'undefined' ? (ch + '') : ' ';
  return repeat(ch, num - str.length) + str;
};