Spread vs Rest Operator in JavaScript — The Difference Every Developer Should Know

🚨 Confused between the Spread (...) and Rest (...) operator in JavaScript? Many developers mix them up.

💡 They share the same syntax but serve completely different purposes depending on where they’re used.

🔹 Spread Operator

• Expands elements from arrays or objects

• Commonly used for copying, merging, or passing values

• Helps maintain immutability in modern JavaScript

• Makes code cleaner and easier to read

🔹 Rest Operator

• Collects multiple values into a single array

• Mostly used in function parameters or destructuring

• Useful when working with an unknown number of arguments

• Helps manage flexible and dynamic data

⚡ Quick rule many developers follow:

• Spread → Expands values

• Rest → Collects values

📌 Same syntax. Two powerful JavaScript features.

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