如何将参数传递给作为addEventListener的参数传递或被分配给事件处理程序的函数？
[英]How to pass parameters to a function being passed as an argument of addEventListener or being assigned to an event handler?
问题描述
将参数添加到传递给addEventListener()或直接分配给事件处理程序的函数的正确和专业方法是什么，如el.onclick = doSomething(param);
1 个解决方案
解决方案1
2 已采纳 2010-11-29 15:35:25
You can use an anonymous function when you need to pass parameters to another, like this: 
当需要将参数传递给另一个时，可以使用匿名函数，如下所示：
el.addEventListener("click", function() { doSomething(param); }, false);
Whereas if it didn't need parameters, it would just be: 而如果没有必要的参数，这纯粹是：
el.addEventListener("click", doSomething, false);
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