Practice
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25 articles · page 3 of 3
A practical guide to frontend memory leaks: the most common causes (listeners, timers, DOM refs, closures), how to detect them in Chrome DevTools, and how to fix them.
Interview-focused async/await guide: how await works, common mistakes, parallelizing with Promise.all, error handling patterns, and when to avoid await-in-loop.
A practical guide to JavaScript Promises for interviews: states, chaining rules, error propagation, polyfills for all/allSettled, and concurrency patterns.
Interview-ready explanation of hoisting and the Temporal Dead Zone: what actually gets hoisted, why let/const behave differently, and common trick questions with outputs.
A practical guide to 'this' in JavaScript: default binding, implicit binding, explicit binding (call/apply/bind), new binding, and how arrow functions change it.
Closures in plain English: lexical scope, how closures work, common interview traps (loops + setTimeout), and practical use cases like memoization and data hiding.
A practical, interview-focused guide to the JS event loop: call stack, Web APIs, task queues, microtasks vs macrotasks, and common trick questions with real examples.