How to Use Try Catch in JavaScript | Error Handling Made Simple

Ever had your JavaScript code crash unexpectedly? In this tutorial, you'll learn **how to use `try...catch` in JavaScript** to handle errors gracefully and keep your app running smoothly. Whether you're dealing with API calls, user input, or asynchronous functions, `try...catch` is your go-to tool for debugging and error recovery.

Proper error handling is essential in both frontend and backend development — and `try...catch` is one of the most powerful (and underused) features in JavaScript when it comes to writing resilient code.

In this video, you'll learn:

* What `try...catch` is and when to use it
* How to structure `try`, `catch`, and `finally` blocks
* How to access and log error details
* Real-world use cases like form validation and API error handling
* Differences between synchronous and asynchronous error handling

Syntax Overview:

```javascript
try {
// Code that might throw an error
const result = riskyFunction();
console.log(result);
} catch (error) {
// Runs if an error is thrown
console.error("Something went wrong:", error.message);
} finally {
// Always runs, error or not
console.log("Finished attempting operation.");
}
```

Key Points:

* `try` runs the block of code you want to monitor
* `catch` handles any errors thrown in the `try` block
* `finally` (optional) runs no matter what — often used for cleanup
* Useful for handling runtime errors without crashing the program
* Commonly used in DOM manipulation, form handling, API requests, file operations, and async flows (with `async/await`)

Example: API Call with `try...catch`

```javascript
async function fetchData() {
try {
const res = await fetch('https://api.example.com/data');
const data = await res.json();
console.log(data);
} catch (err) {
console.error("Failed to fetch:", err);
}
}
```

Note:

* `try...catch` only catches **runtime errors**, not syntax errors.
* For `async/await` functions, use `try...catch` inside the async function.
* Avoid wrapping massive blocks — isolate just the risky parts.

Great For:

* Beginners learning JavaScript error handling
* Developers debugging code in the browser or Node.js
* Anyone writing reliable web applications

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