A Beginner's Guide to JavaScript Arrays Explained with a Shelf Analogy

An array is like a shelf that lets you store multiple items in one place.
Instead of creating separate variables for each value, you group them together.

Think of it as a list of things — organized and easy to access.

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🔹 Example

let fruits = ["apple", "banana", "cherry"];

This is an array with 3 items:
apple, banana, cherry

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📌 What You Can Do with Arrays

✅ 1. Access Items by Index

console.log(fruits[0]); // apple
console.log(fruits[1]); // banana

🔧 Method used: Bracket notation []

🧠 Index starts from 0

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✅ 2. Change an Item

fruits[1] = "mango";
console.log(fruits); // ["apple", "mango", "cherry"]

🔧 Method used: Bracket notation with assignment fruits[index] = value

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✅ 3. Add an Item

fruits.push("orange");
console.log(fruits); // ["apple", "mango", "cherry", "orange"]

🔧 Method used: .push()

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✅ 4. Remove the Last Item

fruits.pop();
console.log(fruits); // ["apple", "mango", "cherry"]

🔧 Method used: .pop()

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✅ 5. Check Array Length

console.log(fruits.length); // 3

🔧 Method used: .length

📏 Returns the number of items in the array.

🌿 Little Reminder

Arrays are foundational in JavaScript —
From storing names to handling complex data, they’re everywhere ✨

Master the basics, and you’ll unlock so many possibilities 💡

Written by Akum Imchen |Mentored and guided by Devsync