Cannot read property ‘preventDefault’ of undefined in javascript error
In Console I got following error using e.preventDefault() method
I used e as a function parameter
function function1(e){
e.preventDefault();
}
1533 Uncaught TypeError: Cannot read property ‘preventDefault’ of undefined.
Called function1 like
<a href="#none" onclick="function1()">Click Me</a>
You have to pass event in the used function:
function1(event); // where you called it
For example:
<a href="#none" onclick="function1(event)">Click Me</a>
Make sure you call this function within an event handler. Such as :
$(document).click(function(event){
function1(event);
});
I remove event from function and invoke function in this way:
<button class="btn btn-primary" runat="server" id="btnSave" type="submit"
onserverclick="btnSave_OnServerClick" onclick="return
jsFunction();">Save</button>
In JavaScript:
function jsFunction() {
alert('call');
if ($('#form1').bootstrapValidator('validate').has('.has-error').length) {
alert('SOMETHING WRONG');
} else {
alert('EVERYTHING IS GOOD');
__doPostBack('<%=btnSave.UniqueID%>', '');
}
return false;
}
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.
$("#clickBtn").on("click", function(e){
e.preventDefault();
});
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:
<a href="#none" onclick="function1(event)">Click Me</a>
function function1(event){
e.preventDefault();
}
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