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JavaScript Functions: DRY, Declarations & Arrow Functions | Episode 20
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In this comprehensive JavaScript tutorial, we dive deep into functions—one of the most essential building blocks in JS development. Whether you're a beginner or need a quick refresher, this video will help you write cleaner, reusable, and more efficient code.
00:00 - Introduction & Why We Use Functions
04:30 - Standalone Functions vs. Methods
06:00 - Function Syntax Explained (Blueprint Breakdown)
09:00 - Parameters & return: How Functions Work
20:06 - Function Expressions & Hoisting
24:24 - Arrow Functions in JavaScript
27:53 - Advanced Arrow Function Rules & Limitations
30:00 - Summary: When to Use Each Type of Function
📌 What you’ll learn in this video:
Why we use functions in JavaScript
How to write functions properly
The difference between function declarations and function expressions
Understanding arrow functions and when to use them
The DRY Principle (Don't Repeat Yourself) and how functions help achieve it
Best practices for organizing and reusing your code
✅ Perfect for:
Beginners learning JavaScript, coding bootcamp students, and anyone looking to improve code structure and efficiency.
🔔 Don’t forget to like, comment, and subscribe for more web development tutorials!
#JavaScript #Functions #FunctionDeclaration #FunctionExpression #FunctionArrow #WebDevelopment #DRYPrinciple #CodingTutorial #LearnJavaScript #FrontendDevelopment #JavaScriptFunctions #ArrowFunction #ProgrammingBasics
00:00 - Introduction & Why We Use Functions
04:30 - Standalone Functions vs. Methods
06:00 - Function Syntax Explained (Blueprint Breakdown)
09:00 - Parameters & return: How Functions Work
20:06 - Function Expressions & Hoisting
24:24 - Arrow Functions in JavaScript
27:53 - Advanced Arrow Function Rules & Limitations
30:00 - Summary: When to Use Each Type of Function
📌 What you’ll learn in this video:
Why we use functions in JavaScript
How to write functions properly
The difference between function declarations and function expressions
Understanding arrow functions and when to use them
The DRY Principle (Don't Repeat Yourself) and how functions help achieve it
Best practices for organizing and reusing your code
✅ Perfect for:
Beginners learning JavaScript, coding bootcamp students, and anyone looking to improve code structure and efficiency.
🔔 Don’t forget to like, comment, and subscribe for more web development tutorials!
#JavaScript #Functions #FunctionDeclaration #FunctionExpression #FunctionArrow #WebDevelopment #DRYPrinciple #CodingTutorial #LearnJavaScript #FrontendDevelopment #JavaScriptFunctions #ArrowFunction #ProgrammingBasics
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