I received a call for an interview for the Level-3 Software Engineer position at the Bangalore location.

This was a drive for Walmart Global Tech.

Every round was an elimination round.

There were a total of 4 rounds, including:

• Two technical rounds
• One with an Engineering Manager
• One with HR

First Round:

1. javascript function random() { return { value: 20 }; }

   const ah = random(); const bn = new random();

   console.log(ah); // 10 console.log(bn); // {value: 20}

2. Create a memoized function.

   Solution: javascript 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: css .arrow-up { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid blue; }

4. Closures, Promise questions, new keyword instances in JS.