Federico Moretti Federico Moretti - 1 month ago 5
Javascript Question

$(this) is undefined and doesn't return selector using the same function

I'm having a problem using the function

on 2 different events. The first event is this:

$buttonStart.on('click', main);

In the second event I need to do other things too so it's like this:

$buttonDelay.on('click', function () {

function uses a jQuery function at the end:


So, the problem is that in the first case it works perfectly, meanwhile in the second case it says:

Uncaught TypeError: Cannot read property 'defaultView' of undefined

I have no idea on what to do to fix this and why it behaves this differently.

Thank you for your help.


You can use Function.prototype.call() to set this to $buttonDelay at otherFunction, main, you can also pass the event object to the functions as second parameter to .call()

$buttonDelay.on("click", function (event) {
    otherFunction.call(this, event);
    main.call(this, event);