Interview

Question 1

What is difference between java and JS?

Answer 1

JS is a scripting language, and Java is a programming language. JS runs on a JS engine. example V8.

Question 2

Can you differentiate between let and var?

Answer 2

Let is added in ES6.

Let is not hoisted var is hosited at the function level.

Question 3

Could you name some built-in methods in JavaScript?

Answer 3

We have many in-built methods.

for numbers, Number.parseInt

For internationalization, Intl.NumberFormat DateFormat.

For math, Math.sqrt , Math.Random.

For arrays, Arr.slice Splice reverse join