Debugging JavaScript errors has become more efficient with the advent of inbuilt developer tools across major web browsers, allowing developers to inspect and rectify issues using features like breakpoints and the script debugger. These tools, accessible via simple keyboard shortcuts, enable developers to pause code execution on exceptions, inspect variables, and analyze call stacks to identify and resolve errors. Additionally, developers can utilize console commands for performance monitoring, such as using console.time() for timing functions or console.memory for memory leaks. While debugging JavaScript across different browsers remains challenging due to compatibility issues, platforms like LambdaTest offer a comprehensive solution by providing access to multiple browser and OS combinations, complete with robust debugging capabilities. The tools enhance productivity and streamline the debugging process, turning a traditionally tedious task into a more manageable and effective workflow.