only-changed-jest-watch-plugin/example/node_modules/left-pad/perf/O(n).js

Jest watch plugin for running either only the modified test (for TDD), or tests of dependant modules

'use strict';

module.exports = function (str, len, ch) {
  str = str + '';

  len = len - str.length;
  if (len <= 0) return str;

  if (!ch && ch !== 0) ch = ' ';
  ch = ch + '';

  while (len--) {
    str = ch + str;
  }

  return str;
}