Prepare step by step: master JavaScript fundamentals (closures, event loop, this, promises), master React (hooks, state management), practice machine coding (build UI components in 90 minutes), practice DSA, study frontend system design, and prepare behavioral answers with the STAR method.
Typically: machine coding (build a UI in 90 minutes), DSA (data structures and algorithms), frontend system design (design a large system), JavaScript/React deep dive (closures, hooks, event loop), and hiring manager / behavioral.
A 90-minute round where you build a UI component or small app from scratch. Examples: OTP input, autocomplete search bar, pagination, tab form, food ordering app. It tests HTML, CSS, JavaScript, and component design under time pressure.
Closures, hoisting, the event loop, microtasks vs macrotasks, the this keyword, call/apply/bind, promises, async/await, Promise combinators, prototypes, prototypal inheritance, and array methods (map, filter, reduce).
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