array notes

Author: adityaSrivastava29

Arrays/array.md

@@ -1,3 +1,25 @@
+Arrays are one of the most fundamental data structures in JavaScript. They are used to store collections of values, and provide a variety of methods for manipulating and working with those values.
+
+declaring an array:
+```javascript
+let arr = [1, 2, 3];
+```
+
+accessing an array:
+```javascript
+let arr = [1, 2, 3];
+console.log(arr[0]); // 1
+```
+
+modifying an array:
+```javascript
+let arr = [1, 2, 3];
+arr[0] = 4;
+console.log(arr); // [4, 2, 3]
+```
+
+----------------------
+
 JavaScript array methods can be categorized into two groups:
 - Mutating methods: These are the methods that directly modify the original array.
 - Non-mutating methods: These methods return a new array without altering the

README.md

@@ -36,6 +36,7 @@ Welcome to your comprehensive JavaScript interview notes! This repository contai
 ---
 
 ## 📖 Index
+- [Arrays](Arrays/array.md)
 - [Functions](functions/functions.md)
 - [Closures](Closures/README.md)
 - [Event Loop](JS%20Interview%20Questions/eventloop.md)

index.md

@@ -2,6 +2,7 @@
 
 
 ## 📚 Table of Contents
+- [Arrays](Arrays/array.md)
 - [Functions](functions/functions.md)
 - [Closures](Closures/closures.md)
 - [Event Loop](JS-Interview-Questions/eventloop.md)