JSFiddle - React, Tailwind, and code Playground

by alexdickson

JavaScript

Object.prototype.gif = 'gotcha';

(function() {

    var extToMimes = {
        'img': 'image/jpeg',
        'png': 'image/png'
    }

    window.getMimeByExt = function(ext) {
        return extToMimes[ext];
    }

})();

document.body.innerHTML = getMimeByExt('gif');