Bump to v4.0.0.

unescape.js

@@ -0,0 +1,33 @@
+define(['./toString', './internal/unescapeHtmlChar'], function(toString, unescapeHtmlChar) {
+
+  /** Used to match HTML entities and HTML characters. */
+  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
+      reHasEscapedHtml = RegExp(reEscapedHtml.source);
+
+  /**
+   * The inverse of `_.escape`; this method converts the HTML entities
+   * `&`, `<`, `>`, `"`, `'`, and ``` in `string` to their
+   * corresponding characters.
+   *
+   * **Note:** No other HTML entities are unescaped. To unescape additional HTML
+   * entities use a third-party library like [_he_](https://mths.be/he).
+   *
+   * @static
+   * @memberOf _
+   * @category String
+   * @param {string} [string=''] The string to unescape.
+   * @returns {string} Returns the unescaped string.
+   * @example
+   *
+   * _.unescape('fred, barney, & pebbles');
+   * // => 'fred, barney, & pebbles'
+   */
+  function unescape(string) {
+    string = toString(string);
+    return (string && reHasEscapedHtml.test(string))
+      ? string.replace(reEscapedHtml, unescapeHtmlChar)
+      : string;
+  }
+
+  return unescape;
+});