Day 1 of 100: JavaScript Setup and Your First QA Script
Day 1 of 100 — 100 Days of Playwright with TypeScript Challenge. Phase: JavaScript Fundamentals. JavaScript (Days 1-33) → TypeScript (Days 34-63) → Playwright (Days 64-96) → AI Framework Capstone (Days 97-100).
🎭 Want to master this with real projects? Join the Playwright Automation Mastery course at The Testing Academy.
Welcome to Day 1. Before Playwright, before TypeScript — JavaScript. Every Playwright test is JavaScript underneath. 33 days of JS fundamentals start now.
Contents
Setup: Node.js and Your First Script
# Install Node.js 20+ from nodejs.org
node --version # v20.x
mkdir js-for-qa && cd js-for-qa
echo "console.log('Hello QA')" > hello.js
node hello.js # Hello QA🚀 Level Up Your Playwright
From locators to CI pipelines — build a production-grade Playwright + TypeScript framework step by step.
Why QA Engineers Need JavaScript
- Playwright tests are written in JS/TS
- Browser console debugging requires JS
- API test scripts, data generation, CI scripts — all JS
- Job postings: JS is the #1 listed language for SDET roles
Your First QA-Relevant Script
// validate-response.js — check an API response shape
const response = { status: 200, body: { id: 1, name: 'Test User' } };
if (response.status === 200 && response.body.name) {
console.log('PASS: response valid');
} else {
console.log('FAIL: bad response');
}Tomorrow (Day 2): Variables — let, const, and why var is dead.
🎓 Master Playwright End to End
Join hundreds of SDETs building real automation frameworks. Lifetime access, hands-on projects, and a job-ready portfolio.
