angular-docs-cn/tools/build/snippets/url_params_to_form.js

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

// helper script that will read out the url parameters
// and store them in appropriate form fields on the page
(function() {
  var regex = /(\w+)=(\w+)/g;
  var search = decodeURIComponent(location.search);
  while (match = regex.exec(search)) {
    var name = match[1];
    var value = match[2];
    var els = document.querySelectorAll('input[name="' + name + '"]');
    var el;
    for (var i = 0; i < els.length; i++) {
      el = els[i];
      if (el.type === 'radio' || el.type === 'checkbox') {
        el.checked = el.value === value;
      } else {
        el.value = value;
      }
    }
  }
})();