About Exception Handling

Exception handling is a critical aspect of software development. It involves gracefully managing unexpected events or errors within a program.

The goal is to prevent application crashes, provide informative error messages, and allow for recovery or fallback mechanisms.

Key Concepts

- **Exception Handling:** A structured process for detecting and responding to errors during the execution of a program. - **Error Messages:** Concise and informative messages explaining what went wrong and potential actions. - Catch Blocks (JavaScript): Used to define and handle specific exceptions. - Throw Exceptions (JavaScript): Signals the start of an exception.

Example: Simple Exception Handling

This example demonstrates a basic exception handler. Let's imagine a scenario where a file cannot be found.

If `file_not_found` throws an exception, the code will halt the execution and display an error message.

This helps make the application user-friendly by providing helpful feedback.

Example: Using a JavaScript Catch Block

Here's a JavaScript example that demonstrates a simpler catch block. It handles a specific error.

function myFunction() { try { // Some code that might throw an error console.log("This code might throw an error"); } catch (error) { console.error("An error occurred:", error); } } myFunction();