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JavaScript Array Methods Full Explanation #shorts #coding #javascript
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🧠 JavaScript Brain Teaser!
Can you guess the output of this tricky JS code?
let x = [1, 2, 3];
x[10] = 10;
🎯 Answer: undefined
💡 JavaScript allows sparse arrays — setting x[10] creates empty slots (undefined) from x[3] to x[9].
👇 If you got it right, you're a JS Pro!
🔥 Don’t forget to Like 👍, Comment 💬, Subscribe 🔔, and Share 📤 with your dev buddies!
📩 Got a topic or challenge you'd like me to cover next? Drop it in the comments! ⬇️
#JavaScript #CodingChallenge #WebDevelopment #JavaScriptQuiz #InterviewPrep #LearnToCode #JSOutput #FrontendDev #TechShorts #DeveloperTips #CodeNewbie #ProgrammingHumor #YTShorts #CodeSnippet #JSInterview #youtubeshorts
Can you guess the output of this tricky JS code?
let x = [1, 2, 3];
x[10] = 10;
🎯 Answer: undefined
💡 JavaScript allows sparse arrays — setting x[10] creates empty slots (undefined) from x[3] to x[9].
👇 If you got it right, you're a JS Pro!
🔥 Don’t forget to Like 👍, Comment 💬, Subscribe 🔔, and Share 📤 with your dev buddies!
📩 Got a topic or challenge you'd like me to cover next? Drop it in the comments! ⬇️
#JavaScript #CodingChallenge #WebDevelopment #JavaScriptQuiz #InterviewPrep #LearnToCode #JSOutput #FrontendDev #TechShorts #DeveloperTips #CodeNewbie #ProgrammingHumor #YTShorts #CodeSnippet #JSInterview #youtubeshorts
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