Javascript 无法读取javascript错误中未定义的属性“preventDefault”
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Cannot read property 'preventDefault' of undefined in javascript error
提问by Jai
In Console I got following error using e.preventDefault() method I used e as a function parameter
在控制台中，我使用 e.preventDefault() 方法出现以下错误，我将 e 用作函数参数
function function1(e){
e.preventDefault();
}
1533 Uncaught TypeError: Cannot read property 'preventDefault' of undefined.
1533 未捕获的类型错误：无法读取未定义的属性“preventDefault”。
Called function1 like
调用 function1 就像
<a href="#none" onclick="function1()">Click Me</a>
采纳答案by Kehdcode
i remove event from function and invoke function in this way
我以这种方式从函数中删除事件并调用函数
onserverclick="btnSave_OnServerClick" onclick="return jsFunction();">Save
onserverclick="btnSave_OnServerClick" onclick="return jsFunction();">保存
In javascript
在 JavaScript 中
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;
}
回答by Jai
You have to pass eventin the used function:
您必须传入event使用的函数：
function1(event); // where you called it
For example:
例如：
<a href="#none" onclick="function1(event)">Click Me</a>
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);
});
回答by Laxminarayan
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.
你写的函数错了。假设您在特定按钮单击上使用函数，其 id 为“clickBtn”，那么您需要编写这样的函数。
$("#clickBtn").on("click", function(e){
e.preventDefault();
});
回答by Kehdcode
You failed to pass the event as a parameter in your in luck event in the html. So it should be written as the sample below:
您未能在 html 中的幸运事件中将该事件作为参数传递。所以它应该写成下面的示例：
<a href="#none" onclick="function1(event)">Click Me</a>
function function1(event){
e.preventDefault();
}
