取自:http://tieba.baidu.com/f?kz=264205010
JavaScript中void是一个操作符,该操作符指定要计算一个表达式但是不返回值。
void 操作符用法格式如下:
1. javascript:void (expression)
2. javascript:void expression
expression 是一个要计算的 JavaScript 标准的表达式。表达式外侧的圆括号是可选的,但是写上去是一个好习惯。 (实现版本 Navigator 3.0 )
你可以使用 void 操作符指定超级链接。表达式会被计算但是不会在当前文档处装入任何内容。
下面的代码创建了一个超级链接,当用户点击以后不会发生任何事。当用户点击链接时,void(0)无返回值,如果输出是undefined,但在 JavaScript 上没有任何效果。
<A HREF="javascript:void(0)">单击此处什么也不会发生</A>
javascript:void(0) 仅仅表示一个死链接?
me 小结:
貌似void(0)一定要传参数给它(多个似乎也行……),但其没有返回值,so如果自己写个空方法如function test(){},也可以javascript:test();,就是说什么也不执行的样子,其实最简洁的做法是:javascript:;(或者干脆连分号也不用了……)。
参考资料:
http://blog.csdn.net/cnkiminzhuhu/article/details/2071143:javascript:void(0)什么意思
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