What is Currying in JavaScript?

Currying is a functional programming technique where a function is transformed into a sequence of functions, each taking a single argument. It allows partial application of functions and makes code more reusable.

Why use Currying in JavaScript?

Currying makes code modular and reusable, enables partial application, improves readability, and allows better function composition in functional programming.

Can you give an example of Currying?

For example, a function add(a, b) can be converted into a curried version add(a)(b). Calling add(2)(3) would return 5, while add(2) returns a new function waiting for the second argument.

Currying Interactive Demo

Master Currying with Fullstackgada’s Fun Approach! 🥻

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🎮 Try Currying Yourself!

First Number (like choosing a saree):

Second Number (like adding a blouse):

Third Number (like adding jewelry):

🥻 Saree Analogy

👗 First, choose the saree = sum(2)

👚 Then, add the blouse = sum(2)(3)

💍 Finally, add jewelry = sum(2)(3)(4)

📊 Step-by-Step Visualization

🎉 Final Result will appear here!

🔍 Normal Function vs Curried Function

Aspect	Normal Function	Curried Function
Syntax	sum(2, 3, 4)	sum(2)(3)(4)
Arguments	All at once	One by one
Flexibility	Less flexible	Highly flexible
Reusability	Less reusable	Highly reusable
Example	Call the entire function every time	Partial application possible