Handling errors is the difference between professional application and one who left user staring at the frozen screen. In javascript things will go wrong - apis will fails, user will provide creative inputs, and variables will be undfined

Here is the in depth guide to managing the chaos using try , catch , finally , and custom errors.

Content List

What errors are in JavaScript

Using try and catch Blocks

The finally Block

Throwing Custom Errors

Why Error Handling Matters

What errors are in JavaScript

Error is the object in javascript, when things goes wrong the JS throws this object. It contains name (a type or error), message (a human readable description), and a stack tracing (A GPS of code: provide location of error from it generate).

If error did not chaught the js stops the entire exection of programm.…