javascript 如何将一些参数传递给 addEventListener 中调用的函数？
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How to pass some parameters to function called in addEventListener?
提问by lwiii
Possible Duplicate:
How to pass arguments to addEventListener listener function?
How can I pass some argument (in this case an integer) to a function through addEventListeneron a clickevent?
我如何通过传递一些参数（在这种情况下一个整数）传递给函数addEventListener在一个click事件？
I have two buttons; if I press the right one I want to do some stuff, if I press the left one then I'd like it to do something else.
我有两个按钮；如果我按右边的我想做一些事情，如果我按左边的那么我希望它做别的事情。
Here's the code:
这是代码：
document.getElementById('date_right').addEventListener( 'click', switch_date(1), false );
document.getElementById('date_left').addEventListener( 'click', switch_date(-1), false );
function switch_date( k )
{
if(k==1)
{
//do stuff
}
else
{
//another stuff
}
}
回答by Matt Ball
You don't. Use anonymous functions:
你没有。使用匿名函数：
document.getElementById('date_right').addEventListener('click', function () {
switch_date(1);
}, false);
document.getElementById('date_left').addEventListener('click', function () {
switch_date(-1);
}, false);
Or use named functions which do not take arguments:
或者使用不带参数的命名函数：
function onRightDateClick() {
switch_date(1);
}
function onLeftDateClick() {
switch_date(-1);
}
document.getElementById('date_right').addEventListener('click', onRightDateClick, false);
document.getElementById('date_left').addEventListener('click', onLeftDateClick, false);
