Why appear input_Login is undefined from browser?

Asked Apr 27 '20 at 20:17

Active Apr 27 '20 at 20:19

Viewed 14 times

I have simple program here. It works, but still appear error in browser input_Login is undefined, why? I don't understand it, please help.

var input_Login = document.getElementsByTagName('input')[0];


function inputCheck(){
    this.style.color='pink';
}

input_Login.addEventListener('input', inputCheck);

asked Apr 27 '20 at 20:17

Kamil Krzyżański

Do you run that code in the head of your page? – j08691 Apr 27 '20 at 20:19
No but it does not metter. The problem is with error input_Login is undefined. But this var has definision in code. – Kamil Krzyżański Apr 27 '20 at 20:22
Yeah, it would matter – j08691 Apr 27 '20 at 20:28
Problem is the same, after run it in the head of page. – Kamil Krzyżański Apr 27 '20 at 20:35

Why appear input_Login is undefined from browser?

0 Answers0