Skip to content

1 or 2 credits, some free · 1 credit is about $1

pocketshelf

JavaScript Regex Basics Cheat Sheet

A 2-page reference for regular expressions: 16 short entries with copy-ready code.

ForDevelopers

javascript-regex-basics-cheat-sheet.pdfShowing 13 of 49 lines
// Test a pattern
const ok = /^\d{3}$/.test("123");

// Capture groups
const [, year, month] = /(\d{4})-(\d{2})/.exec("2026-09");

// Named groups
const { groups } = /(?<year>\d{4})-(?<month>\d{2})/.exec("2026-09");

// Global match all
const all = [..."a1b22".matchAll(/\d+/g)];

// Replace with a function

What's inside

Format
PDF, Markdown
Contents
16 sections · 2 pages
Version
1.0 · Updated 3 Oct 2026
Licence
Commercial What this means
Checked
Checked before it ships
  • javascript-regex-basics-cheat-sheet.pdfPDF · 20 KB
  • javascript-regex-basics-cheat-sheet.mdMarkdown · 2 KB
  • LICENSE.txtadded to every download

About this item

A compact, printable reference for regular expressions in JavaScript. Each of the 16 entries has a one-line explanation and a small example you can paste into your editor. The PDF uses a two-column A4 layout designed to sit next to your keyboard, and the same content ships as Markdown so you can search it or drop it into your notes. Examples target modern JavaScript (ES2023). Commercial license included.

Reviews

No reviews yet.

You might also grab