Debugging JavaScript with Console Methods

Most beginners start with console.log('here') to debug. While that works, the browser DevTools console has much more to offer. console.table() is a lifesaver when you have an array of objects; it displays them in a neat spreadsheet format inside the console. console.group() and console.groupEnd() allow you to nest logs and organize them. console.trace() shows the call stack, which helps figure out how a function was called. And of course, the real power is the debugger statement. Adding debugger; in your code pauses execution when the DevTools are open. At that point, you can hover over variables, run commands in the console, and step through the code line-by-line. I used to spend hours trying to figure out why a variable was undefined by adding log statements; now I set a breakpoint, inspect the scope, and solve the problem in minutes.