Input List Selection Changed Event

问题

I have this example:

<datalist id="browsers">
  <option value="Internet Explorer">
  <option value="Firefox">
  <option value="Google Chrome">
  <option value="Opera">
  <option value="Safari">
</datalist>

I need to catch an event, when the user selects option (with mouse or keyboard).

I tried to do onchange="MySuperFunction();", but this works only when an item is selected and then the list is unfocused.

回答1:

The input event should work for what you need. As I understand, you can't use a datalist directly, but it is connected to an input by the list attribute. This event binding would go on that input:

document.getElementById('browsers-input').addEventListener('input', function () {
   console.log('changed'); 
});

http://jsfiddle.net/vccfv/

回答2:

To get the same effect of "Explosion Pills" solution using JQuery style:

$("#browsers-input").on("input", MySuperFunction);

回答3:

Usin jQuery you could use .change http://jquery.com/

$('datalist#browsers').change(MySuperFunction);

or

$('datalist#browsers').change(function(){
  // stuff
});

来源：https://stackoverflow.com/questions/15147728/input-list-selection-changed-event