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

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