JS函数定义:最后括号的含义 [英] JS function definition : meaning of the last parentheses
问题描述
可能存在重复:
这是什么意思? (function(x,y)){...}){a,b);在JavaScript中
有时我会看到像这些例子定义的函数:
(function(){
....
})();
(function(param){
....
})(JQuery);
$ b $(函数(聊天,朋友){
....
})(chat,chat.module(friend);
经过一些网络研究后,我没有找到任何有关最后括号信息含义的信息。
是否有人解释如何使用它?或者只是指出一个解释含义的网络链接? blockquote>
最后一个脚架的含义
(function() {
....
})();
<$> ()
最终导致函数内部的代码立即执行。
(function(param){
....
})(JQuery);
最后的(JQuery)
会导致函数中的代码立即执行,并传递 JQuery
作为参数。
(function(chat,Friend){
....
})(chat,chat.module(friend));
chat
和 chat.module(friend)
作为参数。
Possible Duplicate:
What is the purpose of a self executing function in javascript?
What does this mean? (function (x,y)){…}){a,b); in JavaScript
I see sometimes functions defined like these examples :
(function() {
....
})();
(function(param) {
....
})(JQuery);
(function(chat, Friend) {
....
})(chat, chat.module("friend");
After some web researches, I didn't find any information about the meaning of the last parentheses information.
Is there someone to explain how to use it? Or simply point a web link explaining the meaning?
meaning of the last brakets
(function() {
....
})();
The ()
in the end causes the code inside the function to be executed immediately.
(function(param) {
....
})(JQuery);
The (JQuery)
in the end causes the code inside the function to be executed immediately, passing JQuery
as a parameter to it.
(function(chat, Friend) {
....
})(chat, chat.module("friend"));
The (chat, chat.module("friend"))
in the end causes the code inside the function to be executed immediately, passing chat
and chat.module("friend")
as parameters to it.
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