Function to change Height with errors

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184 function bannerPrincipal(){
185     var bannerHolder = document.getElementById("banner-principal");
186     var windowSize = window.innerHeight;
187     bannerHolder.css.height == windowSize+"px";
188 }bannerPrincipal();

I am trying to change the height of the div "banner-main" with the above code, however, on the console appears the following error:

Uncaught Typeerror: Cannot read Property 'height' of Undefined at bannerPrincipal (index.php:187) at index.php:188

How can I fix the problem ? and what is causing it ?

javascript resize function

  • }bannerPrincipal(); - What’s the idea of that line? It was a mistake to copy here?

  • 2

    @Sergio is an IIFE "Abajara".

1 answer

3


bannerHolder.css.height == windowSize + 'px';

should be

bannerHolder.style.height = windowSize + 'px';
  • 1

    in that passage bannerHolder.css.height == windowSize+'px' you are comparing in condition or adding value?

  • 1

    It is @Luizaugustoneto, I hadn’t noticed. I edited the answer.

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