# Finding the height based on width and screen size ratio (width:height) in JavaScript

JavascriptWeb DevelopmentFront End Technology

## Problem

We are required to write a JavaScript function that takes in the width of the screen as the first argument and the aspect ratio (w:h) as the second argument. Based on these two inputs our function should return the height of the screen.

## Example

Following is the code −

Live Demo

const ratio = '18:11';
const width = 2417;
const findHeight = (ratio = '', width = 1) => {
const [w, h] = ratio
.split(':')
.map(Number);
const height = (width * h) / w;
return Math.round(height);
};
console.log(findHeight(ratio, width));

## Output

Following is the console output −

1477
Published on 20-Apr-2021 11:10:42
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