Managing Errors
Explore how to detect, handle, and recover from JavaScript errors like syntax, runtime, and logical errors. Learn to use try catch blocks, throw custom errors, and finally blocks for cleanup. This lesson equips you to write more stable and maintainable JavaScript code through effective error management techniques.
In this lesson, we’ll learn about how to manage errors in JavaScript to ensure that our code runs smoothly and handles unexpected issues gracefully.
Understanding error management in JavaScript
JavaScript provides robust tools to detect, handle, and recover from errors. Proper error management makes our applications more reliable and user-friendly by preventing crashes and unexpected behavior.
Types of JavaScript errors
Following are the common types of errors that programmers face during development:
Syntax errors: These occur when the code violates JavaScript’s syntax rules. For example:
if (true { console.log('Missing closing parenthesis');Runtime errors: These occur during execution, often due to invalid operations. For example:
console.log(nonExistentVar...