javascript - 从 jquery 范围调用到类函数

Question

我想从 Jquery 范围（在同一个类中）调用同一个类函数/方法。我该怎么办？

我试过了：

displayTemplate.findWithAttr(action);

或者

this.findWithAttr(action);

回复

“this.findWithAttr 不是函数”

这是我的代码。

class displayTemplate{
  findWithAttr(action) {
    //to do something with action
  }
  router(action){
    if(action == "something"){
      $( "#confirm_dialog_msg" ).text("text?");
         $( "#dialog-confirm" ).dialog({
           buttons: {
             "yes": function() {
                $( this ).dialog( "close" );

               //how in this area call to "findWithAttr" function above?
                this.findWithAttr(action);

             },
             "No": function() {
               //..
             }
           }
        });
      }
  //...
  }
}

标签： javascriptes6-class

Answer 1

在进入函数的 JQuery 范围之前，声明一个像这样的变量

var self = this;

然后就去做self.findWithAttr，这应该有效。

就像：

router(action){
if(action == "something"){
  var self = this;
  $( "#confirm_dialog_msg" ).text("text?");
     $( "#dialog-confirm" ).dialog({
       buttons: {
         "yes": function() {
            $( this ).dialog( "close" );

           //how in this area call to "findWithAttr" function above?
            self.findWithAttr(action);

         },
         "No": function() {
           //..
         }
       }
    });
  }

希望这有帮助。