Pergunta de entrevista da empresa BlazeSoft

What is virtual DOM, and why is it needed? React key (detailed) React fragment Pure components Higher Order Component pattern Bunch of questions about output order (setTimeout, promises etc) All tricky questions about closure, scope, and event loop Variable shadowing var, let and const this, bind, apply, call IIFE Prototypal Inheritance block, inline, and inline-block level elements with examples and detailed explanation CSS positioning (detailed with examples and follow-up questions) Random questions about CSS positioning Flexbox (detailed like you may be asked about flex shrink flex grow and all the stuff) Flexbox vs Grid useMemo and useCallback (low possibility) Search algorithm (low possibility) - coding round Server Side Rendering (low possibility) - coding round Polyfill for flat and flatMap - coding round Sudoku Solver - coding round Implement a Promise from scratch as a class - coding round