Get div height with plain JavaScript

Any ideas on how to get a div's height without using jQuery?

I was searching Stack Overflow for this question and it seems like every answer is pointing to jQuery's .height().

I tried something like myDiv.style.height, but it returned nothing, even when my div had its width and height set in CSS.

Answers:

Answer
var clientHeight = document.getElementById('myDiv').clientHeight;

or

var offsetHeight = document.getElementById('myDiv').offsetHeight;

clientHeight includes padding.

offsetHeight includes padding, scrollBar and borders.

Answer

jsFiddle

var element = document.getElementById('element');
alert(element.offsetHeight);
Answer

Another option is to use the getBoundingClientRect function. Please note that getBoundingClientRect will return an empty rect if the element's display is 'none'.

Example:

var elem = document.getElementById("myDiv");
if(elem) {
   var rect = elem.getBoundingClientRect();
   console.log(rect.height);  
}
Answer
var myDiv = document.getElementById('myDiv'); //get #myDiv
alert(myDiv.clientHeight);

clientHeight and clientWidth are what you are looking for.

offsetHeight and offsetWidth also return the height and width but it includes the border and scrollbar. Depending on the situation, you can use one or the other.

Hope this helps.

Answer

The other answers weren't working for me. Here's what I found at w3schools, assuming the div has a height and/or width set.

All you need is height and width to exclude padding.

    var height = document.getElementById('myDiv').style.height;
    var width = document.getElementById('myDiv').style.width;

You downvoters: This answer has helped at least 5 people, judging by the upvotes I've received. If you don't like it, tell me why so I can fix it. That's my biggest pet peeve with downvotes; you rarely tell me why you downvote it.

Answer
<div id="item">show taille height</div>
<script>
    alert(document.getElementById('item').offsetHeight);
</script>

Jsfiddle

Answer

In addition to el.clientHeight and el.offsetHeight, when you need the height of the content inside the element (regardless of the height set on the element itself) you can use el.scrollHeight. more info

This can be useful if you want to set the element height or max-height to the exact height of it's internal dynamic content. For example:

var el = document.getElementById('myDiv')

el.style.maxHeight = el.scrollHeight+'px'
Answer

try

myDiv.offsetHeight 

console.log("Height:", myDiv.offsetHeight );
#myDiv { width: 100px; height: 666px; background: red}
<div id="myDiv"></div>

Answer

Here's one more alternative:

var classElements = document.getElementsByClassName("className");

function setClassHeight (classElements, desiredHeightValue) 
    {
        var arrayElements = Object.entries(classElements);
        for(var i = 0; i< arrayElements.length; i++) {
            arrayElements[i][1].style.height = desiredHeightValue;
        }

    }
Answer

One option would be

const styleElement = getComputedStyle(document.getElementById("myDiv"));
console.log(styleElement.height);

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