无法在javascript错误中读取未定义属性'preventDefault'

In Console I got following error using e.preventDefault() method I used e as a function parameter

在Console中我使用e.preventDefault()方法得到以下错误我使用e作为函数参数

  function function1(e){
     e.preventDefault();
   }

1533 Uncaught TypeError: Cannot read property 'preventDefault' of undefined

1533 Uncaught TypeError:无法读取未定义的属性'preventDefault'

3 个解决方案

#1

You have to pass event in the used function:

您必须在used函数中传递事件:

function1(event); // where you called it

Make sure you call this function within an event handler. Such as :

确保在事件处理程序中调用此函数。如 :

 $(document).click(function(event){
      function1(event);
 });

#2

i remove event from function and invoke function in this way

我从函数中删除事件并以这种方式调用函数

onserverclick="btnSave_OnServerClick" onclick="return jsFunction();">Save

onserverclick =“btnSave_OnServerClick”onclick =“return jsFunction();”> Save

In javascript

function jsFunction() {
        alert('call');
        if ($('#form1').
      bootstrapValidator('validate').has('.has-error').length) {
            alert('SOMETHING WRONG');

        } else {
            alert('EVERYTHING IS GOOD');
            __doPostBack('<%=btnSave.UniqueID%>', '');
          }
        return false;
    }

#3

You are writing the function wrong. Suppose you are using function on a particular button click having id as 'clickBtn' then you need to write function like this.

你写错了函数。假设您在特定按钮上使用函数,单击id为“clickBtn”,那么您需要编写这样的函数。

$("#clickBtn").on("click", function(e){
     e.preventDefault();
});

#1