Use event arguments with other arguments?

问题

Here's what I want to do:

function someEvent(e) {
}

onxxxx="someEvent()"

and turn that into:

function someEvent(e, arg1, arg2) {
}

onxxxx="someEvent(???)"

So basically, I want to pass other arguments including the default event one, but I'm not sure quite how to

回答1:

You can pass the event object as an argument:

onxxxx="someEvent(event, arg1, arg2);"

event must be literal event here.

Within the eventhandler function you find them like so:

function someEvent(e, a, b) {
    // e === event object
    // a === arg1
    // b === arg2
}

回答2:

You could use anonymous functions:

var arg1 = "12345 - test", arg2 = 42;

onxxxxx = function(e) {
    someEvent.call(this, e, arg1, arg2);
};

来源：https://stackoverflow.com/questions/21946909/use-event-arguments-with-other-arguments