JavaScript enhanced custom callback example_javascript skills

html:

Copy code The code is as follows:

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js:

Copy code code As follows:

$().ready(function(){
$("select").unbind("clickMe");
//Pass a json format object, this There are name, age, callback in json, which can be accessed using objJSON. attribute name
$("select").bind("clickMe", function(event,objJSON){
alert(objJSON. name);
alert(objJSON.age);
objJSON.callback();
});

$("select").unbind("change");
$("select").bind("change",function(){
//The parameter of the event trigger is an object in json format
$(this).trigger("clickMe",{
name:'xxc',
age:20,
callback:function(){
alert("callback function");
}
});
}) ;
});