---
title: "Discussion on \"🧠 JavaScript Function Concepts: Closures, Rest Parameters, Default Parameters & Function Hoisting\" | Hashnode"
description: "Discussion on \"🧠 JavaScript Function Concepts: Closures, Rest Parameters, Default Parameters & Function Hoisting\". Learn core JavaScript function concepts like closures, rest and default parameters, and hoisting, with practical examples and a quiz app project"
url: "https://hashnode.com/posts/javascript-function-concepts-closures-rest-parameters-default-parameters-and-function-hoisting/685fea4aff60895e98859202"
---

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# [🧠 JavaScript Function Concepts: Closures, Rest Parameters, Default Parameters & Function Hoisting](https://codeswithpayal.hashnode.dev/javascript-function-concepts-closures-rest-parameters-default-parameters-and-function-hoisting?utm_source=hashnode&utm_medium=feed)

Learn core JavaScript function concepts like closures, rest and default parameters, and hoisting, with practical examples and a quiz app project

Jun 28, 2025 · 7 min read · codeswithpayal.hashnode.dev  
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## Written by

[Payal Porwal](https://hashnode.com/@PayalPorwal)

@PayalPorwal · Ujjain, Madhya Pradesh

  
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"Exploring the tech universe, one tool at a time"

Hi there, tech enthusiasts! I'm a passionate Software Developer driven by a love for continuous learning and innovation. I thrive on exploring new tools and technologies, pushing boundaries, and finding creative solutions to complex problems. What You'll Find Here On my Hashnode blog, I share: 🚀 In-depth explorations of emerging technologies 💡 Practical tutorials and how-to guides 🔧Insights on software development best practices 🚀Reviews of the latest tools and frameworks 💡 Personal experiences from real-world projects. Join me as we bridge imagination and implementation in the tech world. Whether you're a seasoned pro or just starting out, there's always something new to discover! Let’s connect and grow together! 🌟

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