Calculate Aspect Ratio
              This site uses the calculate-aspect-ratio NPM module
              that calculates the aspect ratio with the provided width
              and height.
            
              import calculateAspectRatio from 'calculate-aspect-ratio';
const aspectRatio = calculateAspectRatio(1920, 1080);  // '16:9'
            
            In addition to being able to use it in your Javascript projects, it also comes with a handy command line utility for being able to quickly calculate the aspect ratio from the command line.
              $ aspectratio 1920 1080
Aspect ratio: 16:9
            
            You can check it out on NPM and GitHub.