Walmart Software Developer interview questions

First Round: 1. function random(){ return {value: 20} } const ah = random(); const bn = new random(); console.log(ah) // 10 console.log(bn) // {value: 20} 2. create a memorized function Solution: function memoise(fn){ var cache = {}; return function(){ const key = JSON.stringify(arguments); if(cache[key]){ console.log("already there", cache[key]) return cache[key] } else { val = fn.apply(null, arguments) cache[key] = val; console.log("its new", val); return val; } } } 3. create a triangle using css and HTML solution: .arrow-up{ width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid blue; } 4. Clouser, promise questions, new keyword instances in JS