在事件中使用参数调用函数 [英] Call function with argument in event

问题描述

我有一个input，并附加了一个change事件.在该更改事件中，我调用了一个函数.这是代码:

I have an input, and attached a change event to it. In that change event I called a function. Here's the code:

textInput.change(myFunction);

那很好.但是我想传递一个参数给它. myFunction('arg')当我这样做时，该函数立即调用自身，而不是在发生更改事件时调用.

That works fine. But I want to pass a parameter to it. myFunction('arg') When I do that, the function calls itself right away, and not when there's a change event.

如何使用参数调用change事件的函数?

How can I call a function to the change event with arguments?

推荐答案

首先，它是onchange.

绑定函数:

textInput.onchange = myFunction.bind(this, 'a');

或者，如果您不想显式使用bind，只需将对函数的调用放在函数onchange调用中:

Or, if you don't want to explicitly use bind, just put the call to the function in the function onchange calls:

textInput.onchange = function () {
  myFunction('a');
};

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