[英]programmatically change element value javascript
I wanting to get the currentTarget to pass to a function, once I have changed the value of a select programmatically. 一旦我以编程方式更改了select的值,我想让currentTarget传递给函数。
Is this possible? 这可能吗? Something like,
就像是,
$('input[name="client_id"]').val(model.get('id')) //Change the value of select
this.doSave( $('input[name="client_id"]')); //Do save expects event(e) as parameter
function doSave(event){
console.log($(event.currentTarget);
}
I have simplified this down massively, basically I am changing a select programmatically, and then want to fire my save event, which normally gets triggered on a change event, and as a result takes an event as a parameter, but all I have is the DOM element? 我已经将其简化了很多,基本上我正在以编程方式更改选择,然后要触发我的保存事件,该事件通常在更改事件上触发,因此将事件作为参数,但是我所拥有的只是DOM元素? Is there a way to send it an event?
有没有办法发送事件?
Use the change event handler as below : 使用更改事件处理程序,如下所示:
$('input[name="client_id"]').on('change', function(event) {
console.log($(event.currentTarget);
});
or 要么
$('input[name="client_id"]').on('change', doSave);
function doSave(event){
console.log($(event.currentTarget);
}
First of all, This 首先,这个
$('input[name="client_id"]')
apparently, changes the value of an input and not select. 显然,更改输入的值而不是选择。
This 这个
$('select[name="client_id"]').val(model.get('id'))
changes the selected option in a select. 更改选择中的所选选项。
You can bind the change event on a select like 您可以将更改事件绑定到类似的选择上
$('select').change(function(event){
//use event here
//or pass to doSave(event)
});
and it will be fired when call 它将在呼叫时被触发
$('input[name="client_id"]').change();
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