javascript - jQuery，如果任何 "one"值发生变化

Question

我有一段代码，其中这个人编写了三十个函数，用于当一组表单值发生变化时。

我想将它们组成一个函数

$('#jobs_held').change(function() {
// do something, with a little variation
});

$('#residence_years').change(function() {
// do something, with a little variation
});

$('#how_long').change(function() {
// do something, with a little variation
});

无论如何我可以做一些事情......

$('#jobs_held', '#residence_years', '#how_long').change(function(){
// do something, with a little variation
});

Answer 1

将它们连接成一个字符串以使用 multiple-selector^[docs] .

$('#jobs_held,#residence_years,#how_long').change(function(){
    // do something, with a little variation

    // "this" can be used to refer to the specific element 
    //     that received the event.

    alert( this.id ); // to alert the ID of the element
});

...或者找到一些共同的身份(例如类)来选择它们。