Javascript Array

 

Javascript Array

1. Creating Arrays

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

console.log("Fruits:", fruits);

2. Creating New Arrays by using Array Constructor

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

3. Adding & Removing Elements

push() → Add to end

pop() → Remove from end

unshift() → Add to start

shift() → Remove from start

4. Finding Elements

indexOf() → First occurrence index

includes() → Check existence

find() → First element matching condition

findIndex() → Index of first match

filter() → Keep elements matching condition

reduce() → Accumulate values

6. Sorting & Reversing

sort() → Sort alphabetically

reverse() → Reverse order

7. Joining & Splitting

join() → Combine into string

split() → Convert string to array

8. Combining & Slicing

concat() → Merge arrays

slice() → Extract portion

splice() → Add/Remove elements

9. Flattening Arrays

flat() → Flatten nested arrays

10. Iterating

forEach() → Loop through elements