Q
What is the difference between microtasks and macrotasks?
A
Microtasks (Promises) run before the next macrotask (setTimeout) in the event loop.
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Flash CardReact
What causes unnecessary re-renders?
State updates, unstable props, and missing memoization boundaries.
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React Hooks
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Gap
Testing
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Core Topic
Async Fundamentals
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Closures
SOLIDPromises
SOLIDWeakRefs
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MongoDBVideo
BSON and JSON Document Format
Introduction & Core ConceptsCRUD Operations & Query LanguageData Modeling & Schema Design
GitSlideshow
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Object Deduplication and Shared Blob Storage
Core Concepts and ArchitectureBranching and Merging StrategiesGit Hooks & Automation
ReactFlashcard
QA & Software TestingFlashcard
Databases & SQLQuiz
Which query correctly filters rows where city equals the text value New York?
Application SecurityFlashcard + Voice
Data Structures, AlgorithmsCode Quiz
function twoPasses(arr) {
// Time complexity: O(n^2)
for (let i = 0; i < arr.length; i++) console.log(arr[i]);
for (let j = 0; j < arr.length; j++) console.log(arr[j] * 2);
}What is the bug in this code's complexity annotation?
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