JavaScript Debugging_basics Guide
JavaScript debugging with DevTools: breakpoints, watch expressions, call stack inspection, and step-through debugging. The guide walks through Debugging Tools. `debugger;` — programmatic breakpoint. Sources tab: set line breakpoints, conditional breakpoints, DOM breakpoints, XHR breakpoints. Watch: monitor variable values. Call stack: trace execution path. Scope: inspect local/closure/global variables. Console: `console.log`, `console.table`, `console.trace`. Network tab: inspect API requests. Performance tab: record and analyze. The guide is organized into 1 sections that build on each other, each pairing a prose explanation with runnable code. Related guides: Arrays, Strings, Numbers, Math, Date. This is one of 145 JavaScript guides on JS Reference — see the full list on the guides page. Practice what you learn in the JavaScript playground, and look up any unfamiliar term in the JavaScript glossary.