How to use variable in style property of bar graph

Question

Hello, I am doing bar graph in html.. for graph, height is set by style =" height = 90%"... I need this 90 value as variable and need your help to achieve the same as I am unable to do so...

for more info, I am trying to create graph from XML data and that height value to be stored in variable is from XML.

Answer 1

Use this snippet.
var height = document.querySelector(ELEM_NAME).style.height

Answer 2

You can just use this.

document.queryselector(OTHER_ELEM).style.height = height
//you need previous snippet to wok this.

I recommend you to go through this tutorial.
https://www.sololearn.com/learn/JavaScript/2752/

Answer 3

Seniru Pasan, this means value of element height is stored in variable....correct.? now what to be done if I wanna set this variable value as height of another element