JavaScript Console_advanced Guide
Advanced console techniques: CSS styling, timing, grouping, counting, and assertion for better debugging output. The guide walks through Console Methods. Styling: `console.log("%cHello", "color:red;font-size:20px")`. `console.table(data)` — tabular. `console.group("label")/groupEnd()` — nested groups. `console.time("label")/timeEnd("label")` — timing. `console.count("label")` — count calls. `console.assert(cond, msg)` — conditional error. `console.trace()` — stack trace. `console.clear()` — clear. dir vs dirxml. 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.