replace.js
 1  var toString = require('./toString');
 2  
 3  /**
 4   * Replaces matches for `pattern` in `string` with `replacement`.
 5   *
 6   * **Note:** This method is based on
 7   * [`String#replace`](https://mdn.io/String/replace).
 8   *
 9   * @static
10   * @memberOf _
11   * @since 4.0.0
12   * @category String
13   * @param {string} [string=''] The string to modify.
14   * @param {RegExp|string} pattern The pattern to replace.
15   * @param {Function|string} replacement The match replacement.
16   * @returns {string} Returns the modified string.
17   * @example
18   *
19   * _.replace('Hi Fred', 'Fred', 'Barney');
20   * // => 'Hi Barney'
21   */
22  function replace() {
23    var args = arguments,
24        string = toString(args[0]);
25  
26    return args.length < 3 ? string : string.replace(args[1], args[2]);
27  }
28  
29  module.exports = replace;