Question

I have this simple function that needs to find an element and set its height on load:

function setGround() { 

document.getElementById('content').style.height = '40px';

        } 


document.onload = setGround(); 

However the function returns “null” on load. Am I missing something obvious? Yes the element with that ID does exist.

Thank you for your help.

Answer 1

document.onload = setGround; 

Remove the () or the function runs immediately, and then document.onload is set to the return of the function (which in your case is null undefined).