JavaScript Array

🔢 JavaScript Arrays – A Beginner’s Guide

Arrays in JavaScript are special variables that can hold multiple values at once. Instead of creating separate variables for each value, you can store them all in one array.

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✅ How to Create an Array

javascriptCopyEditlet fruits = ["Apple", "Banana", "Mango"];

You can also use the new Array() constructor:

javascriptCopyEditlet numbers = new Array(1, 2, 3, 4);

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📍 Accessing Array Elements

Array elements are accessed using index numbers (starting from 0):

javascriptCopyEditconsole.log(fruits[0]); // Output: Apple

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🛠 Common Array Methods

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🔁 Looping Through Arrays

javascriptCopyEditfor (let i = 0; i < fruits.length; i++) {
    console.log(fruits[i]);
}

Or use forEach():

javascriptCopyEditfruits.forEach(function(fruit) {
    console.log(fruit);
});

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📌 Array of Objects Example

javascriptCopyEditlet students = [
  { name: "Amit", age: 20 },
  { name: "Riya", age: 22 }
];

console.log(students[0].name); // Output: Amit

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🧠 Tip: Arrays are mutable. That means methods like push, pop, etc. change the original array.

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🧪 Test It Out

javascriptCopyEditlet colors = ["Red", "Green"];
colors.push("Blue");
console.log(colors); // Output: ["Red", "Green", "Blue"]