Is specificity a characteristic of JavaScript?

After setting a div in my HTML file to have a height of 100px and a width of 100px, I attempted to retrieve the height using JavaScript. This is what I tried:

console.log(document.GetElementById("box").style.height);

// The div had an ID of "box" and was styled with CSS, but it returned an empty line.
https://i.sstatic.net/zVqEg.png

// However, when I applied inline styling with CSS, the height was successfully logged.
https://i.sstatic.net/biXZK.png

Answer №1

To accurately determine the height of your #box element, it is recommended to retrieve the computed height rather than simply reading the value of the style attribute.

There are multiple approaches for achieving this:

// includes height + vertical padding
var h = document.getElementById('box').clientHeight;

// includes height + top/bottom padding + top/bottom borders
var h = document.getElementById('box').offsetHeight;

// includes height of the contained document
// (potentially larger due to overflow scrolling)
// + top/bottom padding + top/bottom borders
var h = document.getElementById('box').scrollHeight;

Additionally, ensure that you use a lowercase g when calling getElementById().

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