Here is the detailed explanation of Arrays:
In JavaScript, an array is a data structure that allows you to store and organize multiple values within a single variable.
• Arrays can hold elements of same data types, and the elements are indexed starting from 0.
Features of Array:
- It provides a structured way to organize and store collections of data.
- Elements in an array are stored in contiguous memory locations, making it efficient for indexing and accessing elements.
- It allows you to group similar or related pieces of data together.
- It provides efficient algorithms for searching and sorting elements.
- It provides an efficient use of memory, especially when dealing with large datasets.
- It can be used to implement lists, tables, stacks, queues, and other data structures.
Declaring Arrays:
You can declare an array using square brackets [ ]:
// Empty array
let emptyArray = [];
// Array with values
let fruits = ['Apple', 'Banana', 'Orange'];
Accessing Elements:
Array elements can be accessed using their index. The index starts from 0 for the first element:
console.log(fruits[0]); // Output: 'Apple'
console.log(fruits[1]); // Output: 'Banana'
console.log(fruits[2]); // Output: 'Orange'