---
title: "How to handle errors and exceptions in JavaScript?"  
description: "How to handle errors and exceptions in JavaScript?"  
author: "Revati S Misra"  
published: 2023-07-16  
updated: 2023-07-17  
canonical: https://www.mindstick.com/forum/159119/how-to-handle-errors-and-exceptions-in-javascript  
category: "javascript"  
tags: ["exception handling", "javascript", "exception"]  
reading_time: 2 minutes  

---

# How to handle errors and exceptions in JavaScript?

How to [handle](https://www.mindstick.com/articles/311004/suede-skillet-handle-cover) [errors and exceptions](https://www.mindstick.com/forum/157886/how-do-you-handle-errors-and-exceptions-in-angularjs-applications) in [JavaScript](https://www.mindstick.com/articles/874/how-to-create-watermark-text-for-textbox-by-using-javascript)?

## Replies

### Reply by Aryan Kumar

Sure, here are the steps on how to handle [errors](https://answers.mindstick.com/qa/116170/fresh-fir-against-gandhis-in-national-herald-case-cover-up-for-ed-s-own-errors) and [exceptions](https://www.mindstick.com/interview/22871/define-predifined-generic-exceptions) in JavaScript:

1. **Use the** `try...catch` **statement.** The `try...catch` statement is a block of code that allows you to handle errors that occur in your JavaScript code. The `try` block contains the code that you want to execute. If an error occurs in the `try` block, the `catch` block will be executed.

```plaintext
try {
  // Code that you want to execute
} catch (error) {
  // Code that will be executed if an error occurs
}
```

1. **Use the** `throw` **statement.** The `throw` statement is used to throw an exception. An exception is an object that contains information about an error that has occurred. The `throw` statement takes an object as an argument. This object can be any object, but it is typically an instance of the `Error` object.

```plaintext
function myFunction() {
  throw new Error("This is an error");
}
```

1. **Use the** `onerror` **event handler.** The `onerror` event handler is a function that is called when an error occurs in an HTML element. The `onerror` event handler takes a function as an argument. This function will be called when an error occurs in the HTML element.

```plaintext
<div onerror="myFunction()">This is an HTML element</div>

function myFunction() {
  // Code that will be executed if an error occurs
}
```

Here are some of the benefits of handling errors and exceptions in JavaScript:

- It can help you to prevent your JavaScript code from crashing.
- It can help you to provide a better user experience by displaying a meaningful error message to the user.
- It can help you to debug your JavaScript code by providing you with information about the error that has occurred.


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Original Source: https://www.mindstick.com/forum/159119/how-to-handle-errors-and-exceptions-in-javascript

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