Day 10 of 100: Objects — The Shape of Every API Payload
Day 10 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).
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Every API request body, every response, every config — objects. Master access patterns.
Contents
Creating and Accessing
const user = {
id: 101,
name: 'Jane QA',
email: 'jane@test.com',
address: { city: 'Pune', zip: '411001' },
};
user.name; // dot — known keys
user['email']; // bracket — dynamic keys
user.address.city; // nested
const field = 'name';
user[field]; // 'Jane QA' — dynamic access🚀 Level Up Your Playwright
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Modifying
user.role = 'admin'; // add
user.name = 'Jane Smith'; // update
delete user.id; // remove
Object.keys(user); // ['name','email','address','role']
Object.values(user); // values array
Object.entries(user); // [key, value] pairsQA Pattern: Response Shape Check
function hasRequiredFields(body, required) {
return required.every(key => key in body);
}
hasRequiredFields(user, ['name', 'email']); // true
hasRequiredFields(user, ['name', 'ssn']); // falseTomorrow (Day 11): Destructuring — the { page } in every Playwright test.
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