Debugging Tools and Techniques

Debugging Tools and Techniques

Effective debugging is essential for identifying and resolving bugs in the code. JavaScript provides various tools and techniques to facilitate debugging.

Using console.log()

The simplest debugging method is to insert console.log() statements to print values and check the flow of the program.

Browser Developer Tools

Modern browsers have powerful developer tools that allow developers to inspect variables, set breakpoints, and step through code during execution.

debugger Statement

The debugger statement is a useful tool that allows developers to pause code execution at a specific line and inspect variables and the call stack.

Source Maps

Source maps help map minified or transpiled code back to its original source, making debugging easier, especially in production environments.

Handling Asynchronous Errors

Asynchronous code can lead to errors not immediately caught by the try...catch block. Use the catch() method on promises or try...catch with async/await to handle asynchronous errors.