无法删除Javascript

如何解决无法删除Javascript

我在使用jQuery .off()删除jQuery事件侦听器时遇到麻烦，jQuery event.data附加到带有function test1(){ //some data to be used on click at button 'lets go' var i=1; function test2(event){ event.data.i++; console.log("i="+event.data.i); console.log("i_original="+i); } $('#letsGo').off('click'); //cannot use,as it is required in global scope with different handler function $('#letsGo').off('click',test2); //not working $('#letsGo').off('click',{'i':i},test2(event)); //not working $('#letsGo').off('click',test2(event)}; //not working //some code here $('#letsGo').on('click',test2); //this is where it get's attached after removing existing handler } 的按钮上。这是我为执行所需操作而开发的代码：

test1() //function call
    click @ letsGo
    click @ letsGo
    click @ letsGo
test1() //again function call to remove existing handlers and attach new one
    click @ letsGo
test1() //again function call
    click @ letsGo
    click @ letsGo
.....continues

以上功能按以下操作顺序调用：

.off()

上述jQuery .off()方法的问题在于它没有删除现有事件，而是始终附加一个新事件。因此，无论何时进行函数调用，都将再有一个事件侦听器。这不是期望的行为。

即使有event.data属性，我想要的所有功能都是string1 = " { "id": "101","created_time": 1603302391,"created_user_id": "58749658","created_user": "siva",},{ "id": "102","created_time": 1603302394,"created_user_id": "32145678",}" string2 = " { "id": "111","created_time": 1603382391,"created_user_id": "7894569","notes":"segrsegeg" },"notes":"segrsegeg" }"。

所以，请帮助我。

解决方法

首先，在附加事件时命名空间：

$('#letsGo').on('click.test2',{'i':i},test2);

然后，当您只想删除test2函数时，请以您先前创建的名称空间作为目标：

 $('#letsGo').off('click.test2');