Created
December 10, 2011 08:43
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emulate html5 classList api with javascript.
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| (function () { | |
| if (document.documentElement.classList) { // html tag has no 'classList' property | |
| Object.defineProperty(HTMLElement.prototype, 'classList', { | |
| get: function () { | |
| return new function(node) { | |
| var self = node.className.trim().split(/\s+/); | |
| self.item = function (index) { | |
| return self[index]; | |
| }; | |
| self.contains = function (className) { | |
| return self.indexOf(className) !== -1; | |
| }; | |
| self.add = function (className) { | |
| if (!self.contains(className)) { | |
| self.push(className); | |
| node.className = self.toString(); | |
| } | |
| }; | |
| self.remove = function (className) { | |
| var index = self.indexOf(className); | |
| if (index >= 0) { | |
| self.splice(index, 1); | |
| node.className = self.toString(); | |
| } | |
| }; | |
| self.toggle = function (className) { | |
| if (self.contains(className)) { | |
| self.remove(className); | |
| } else { | |
| self.add(className); | |
| } | |
| }; | |
| self.toString = function() { | |
| return self.join(' '); | |
| }; | |
| return self; | |
| }(this); | |
| }, | |
| enumerable: true | |
| }); | |
| } | |
| }()); |
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Hello,
Could be that a negation is missing on the first line?
I would type:
if (!document.documentElement.classList) { // html tag has no 'classList' propertyregards,
Tomolimo