while passing string array from eventlistener, it throws an error which is given below-CodePudding

Error :85 Uncaught TypeError: Failed to execute 'addEventListener' on 'EventTarget': parameter 2 is not of type 'Object'.

code:

username.addEventListener('focusout', Exist(existed_username) );

can we pass argument like above?

CodePudding user response：

Try to do like this.

username.addEventListener('focusout', ()=>Exist(existed_username) );

CodePudding user response：

Yes you can, but not like that. You're basically executing the function right away, which should only occur upon firing that event. Instead, you can do:

username.addEventListener('focusout', Exist.bind(username, existed_username));