Error handling JS

1. What is error-handling in JavaScript?
2. What are the best practice of error-handling in JS?
3. How to get error response in js?

What is error-handling in JavaScript?

JavaScript provides error-handling mechanism to catch runtime errors using try-catch-finally block, similar to other languages like Java or C#. Syntax: try // code that may throw an error catch(ex) // code to be executed if an error occurs finally // code to be executed regardless of an error occurs or not

What are the best practice of error-handling in JS?

Don't Overuse the “Try-Catch”

The first best practice of “Exception Handling” is, don't overuse “Exception Handling.” Typically, we handle exceptions at the outer layers and throws from the inner so that once an exception occurs, we can better understand what leads to it.

How to get error response in js?

When an error occurs, JavaScript will normally stop and generate an error message. The technical term for this is: JavaScript will throw an exception (throw an error). JavaScript will actually create an Error object with two properties: name and message.