Javascript 在 Drupal 7 中使用 JQuery
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Using JQuery in Drupal 7
提问by JochenJung
I'm writing my own Drupal 7 module, and like to use JQuery in it.
我正在编写自己的 Drupal 7 模块,并且喜欢在其中使用 JQuery。
$('#field').toggle();
But I'm getting this error:
但我收到此错误:
TypeError: Property '$' of object [object DOMWindow] is not a function
It seems that JQuery is not loaded. Otherwise $ should be defined.
似乎未加载 JQuery。否则 $ 应该被定义。
Though I actually include it in the header:
虽然我实际上将它包含在标题中:
<script type="text/javascript" src="http://rockfinder.de/misc/jquery.js?v=1.4.4"></script>
Do I have to do anything else to activate JQuery in Drupal? Is $ being overwritten by Drupal?
我还需要做任何其他事情才能在 Drupal 中激活 JQuery 吗?$ 是否被 Drupal 覆盖?
That's the website: http://rockfinder.orgapage.de
这是网站:http: //rockfinder.orgapage.de
回答by Eaton
From the Drupal 7 upgrade guide:
Javascript should be made compatible with other libraries than jQuery by adding a small wrapper around your existing code:
(function ($) { // Original JavaScript code. })(jQuery);
The $ global will no longer refer to the jquery object. However, with this construction, the local variable $ will refer to jquery, allowing your code to access jQuery through $ anyway, while the code will not conflict with other libraries that use the $ global.
通过在现有代码周围添加一个小包装器,Javascript 应该与 jQuery 之外的其他库兼容:
(function ($) { // Original JavaScript code. })(jQuery);
$ global 将不再引用 jquery 对象。但是,通过这种构造,局部变量 $ 将引用 jquery,从而使您的代码无论如何都可以通过 $ 访问 jQuery,同时代码不会与其他使用 $ 全局变量的库发生冲突。
You can also just use the 'jQuery' variable instead of the $ variable in your code.
您也可以在代码中仅使用 'jQuery' 变量而不是 $ 变量。
回答by Andreas Grech
According to Firebug, your jQuery file is being loaded:
根据 Firebug,您的 jQuery 文件正在加载:
But the $
is being overwritten by something else:
但是$
正在被其他东西覆盖:
What you should do is encapsulate the use of the $
variable with a function that invokes itself using the jQuery
object as it's first actual argument:
您应该做的是将$
变量的使用封装在一个函数中,该函数使用jQuery
对象作为第一个实际参数来调用自身:
(function ($) {
// in this function, you can use the $ which refers to the jQuery object
}(jQuery));
回答by Guus
Chances are your script is not initialized this way, you'll have to use Drupal.behaviors.YOURTHEMENAME
您的脚本可能没有以这种方式初始化,您必须使用 Drupal.behaviors.YOURTHEMENAME
(function ($) {
Drupal.behaviors.YOURTHEMENAME = {
attach: function(context, settings) {
/*Add your js code here*/
alert('Code');
}
};
})(jQuery);
回答by Haripal Rao
"$ is not a function" is a very common error that you may face while working with jQuery. You can try any answers of given below:
“$ 不是函数”是您在使用 jQuery 时可能会遇到的一个非常常见的错误。您可以尝试以下给出的任何答案:
(function($){
//your can write your code here with $ prefix
})(jQuery);
OR
或者
jQuery(document).ready(function($){
//Write your code here
});
Basically this will allow our code to run and use the $ shortcut for JQuery.
基本上这将允许我们的代码运行并使用 JQuery 的 $ 快捷方式。
回答by Yuri Kevin
You can create the separate file for js and than add js file using the following:
您可以为 js 创建单独的文件,然后使用以下命令添加 js 文件:
drupal_add_js('path', 'module_name');