价值变化启动活动

Question

I made simple date picker using javascript and jquery. After choosing date it is shown in input box. This input boxis not lauching change event, probably because it was changed using javascript. Is there any way to launch this event, or to make custom one?

Answer 1

分配新值后运行以下代码：

$('input').change();

Answer 2

.change just points to the .on function inside jquery, so it's better to use the .on directly.

$('#inputID').on('change', function() {
});

Answer 3

$("input#yourInputId").change();

or

$("input#yourInputId").trigger("change");

Should do the trick. Replace the #yourInputId with an id that represents the ID="abc" part of your HTML for the textbox

• Be aware of potential browser irregularities or lack of support for change events - behaviour may vary, particularly in older browsers.

Answer 4

There is a change and an input event. The first fires after an input changed and lost focus. The latter fires immediately when the input changes. However there are no events that fire after programatically changing an input.

If you have control over the code that changes your inputs you can of course trigger the events manually like described in the other answers.