add umd module support in dist

dist/js/umd/util.js

@@ -0,0 +1,142 @@
+(function (global, factory) {
+  if (typeof define === 'function' && define.amd) {
+    define(['exports', 'module'], factory);
+  } else if (typeof exports !== 'undefined' && typeof module !== 'undefined') {
+    factory(exports, module);
+  } else {
+    var mod = {
+      exports: {}
+    };
+    factory(mod.exports, mod);
+    global.util = mod.exports;
+  }
+})(this, function (exports, module) {
+  /**
+   * --------------------------------------------------------------------------
+   * Bootstrap (v4.0.0): util.js
+   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+   * --------------------------------------------------------------------------
+   */
+
+  'use strict';
+
+  var Util = (function ($) {
+
+    /**
+     * ------------------------------------------------------------------------
+     * Private TransitionEnd Helpers
+     * ------------------------------------------------------------------------
+     */
+
+    var transition = false;
+
+    var TransitionEndEvent = {
+      WebkitTransition: 'webkitTransitionEnd',
+      MozTransition: 'transitionend',
+      OTransition: 'oTransitionEnd otransitionend',
+      transition: 'transitionend'
+    };
+
+    function getSpecialTransitionEndEvent() {
+      return {
+        bindType: transition.end,
+        delegateType: transition.end,
+        handle: function handle(event) {
+          if ($(event.target).is(this)) {
+            return event.handleObj.handler.apply(this, arguments);
+          }
+        }
+      };
+    }
+
+    function transitionEndTest() {
+      if (window.QUnit) {
+        return false;
+      }
+
+      var el = document.createElement('bootstrap');
+
+      for (var name in TransitionEndEvent) {
+        if (el.style[name] !== undefined) {
+          return { end: TransitionEndEvent[name] };
+        }
+      }
+
+      return false;
+    }
+
+    function transitionEndEmulator(duration) {
+      var _this = this;
+
+      var called = false;
+
+      $(this).one(Util.TRANSITION_END, function () {
+        called = true;
+      });
+
+      setTimeout(function () {
+        if (!called) {
+          Util.triggerTransitionEnd(_this);
+        }
+      }, duration);
+
+      return this;
+    }
+
+    function setTransitionEndSupport() {
+      transition = transitionEndTest();
+
+      $.fn.emulateTransitionEnd = transitionEndEmulator;
+
+      if (Util.supportsTransitionEnd()) {
+        $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
+      }
+    }
+
+    /**
+     * --------------------------------------------------------------------------
+     * Public Util Api
+     * --------------------------------------------------------------------------
+     */
+
+    var Util = {
+
+      TRANSITION_END: 'bsTransitionEnd',
+
+      getUID: function getUID(prefix) {
+        do prefix += ~ ~(Math.random() * 1000000); while (document.getElementById(prefix));
+        return prefix;
+      },
+
+      getSelectorFromElement: function getSelectorFromElement(element) {
+        var selector = element.getAttribute('data-target');
+
+        if (!selector) {
+          selector = element.getAttribute('href') || '';
+          selector = /^#[a-z]/i.test(selector) ? selector : null;
+        }
+
+        return selector;
+      },
+
+      reflow: function reflow(element) {
+        new Function('bs', 'return bs')(element.offsetHeight);
+      },
+
+      triggerTransitionEnd: function triggerTransitionEnd(element) {
+        $(element).trigger(transition.end);
+      },
+
+      supportsTransitionEnd: function supportsTransitionEnd() {
+        return !!transition;
+      }
+
+    };
+
+    setTransitionEndSupport();
+
+    return Util;
+  })(jQuery);
+
+  module.exports = Util;
+});