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Call and Apply Polyfills in Javascript | JS Interview Questions | Frontend Interview Prep Series

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Aug 12, 2025
30:16

In this video, you'll learn how to implement the call and apply polyfills from scratch in Javascript. This is a key concept in understanding how JavaScript’s this keyword and functions executed over objects work under the hood. This question is great for interviews, deep dives or just leveling up your JS fundamentals. 🔥 📌 Prepare for your next Frontend Interview for FREE - https://www.youtube.com/playlist?list=PLniRCq0bbY2fzMLDrti9FOS1E8PbA2Cew If you like such videos and wish to embark on this life-long learning journey, do consider subscribing to my YouTube channel - @CodeWithAishwarya 💙 Whether you're a beginner or experienced professional, I'll ensure you that you'll be learning something new from every video. Let's do this together! 💪 🤝 Connect on LinkedIn - https://www.linkedin.com/in/aishwaryaparab 📌 Connect with me 1:1 for Career Guidance - https://topmate.io/aishwarya_parab 💜 Appreciate my efforts - https://buymeacoffee.com/aishwaryaparab 💼 Business queries - [email protected] If you're a frontend developer, looking to master React Hooks, here's a book I've written for YOU: https://topmate.io/aishwarya_parab/1092412 Thank you so much for always supporting. Your support and advice keeps me going and helps me improve. Means a lot 💙 Until next time! ✨ Timestamps 👇 00:00 - Intro 00:56 - A request from ME 02:30 - Call in Javascript 10:04 - Call Polyfill in Javascript 20:32 - Validations for senior frontend roles 25:40 - Apply in Javascript 27:19 - Apply Polyfill in Javascript 28:25 - Validations for Apply Polyfill 29:35 - Next steps We are 327 and counting… 🔸 Tags 🔸 javascript,call apply polyfill,javascript call apply polyfill,polyfill tutorial,call method javascript,apply method javascript,function.prototype.call,function.prototype.apply,polyfill in javascript,javascript interview questions,javascript tutorial,javascript for beginners,frontend interview prep,web development,learn javascript,custom call method,custom apply method,javascript coding challenge,frontend coding questions #JavaScript #CallApplyPolyfill #JavaScriptTutorial #FrontendInterview #CodingInterview #WebDevelopment #Polyfill #LearnJavaScript #CodeNewbie #JSChallenge #JavaScriptForBeginners #FrontendDev

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Call and Apply Polyfills in Javascript | JS Interview Questions | Frontend Interview Prep Series | NatokHD