Implementation of array in JavaScript
- Initializes a JavaScript array arr with values.
- Accesses the element at index 0 using arr[0] and prints its value.
- Modifies the element at index 0 by assigning a new value (9) to arr[0] and prints the modified value.
Javascript
let arr = [1, 2, 3, 4, 5]; // Initializing an array with values // Accessing elements console.log("Element at index 0:", arr[0]); // Modifying elements arr[0] = 9; console.log("Modified element at index 0:", arr[0]); |
Output
Element at index 0: 1 Modified element at index 0: 9
Implement Arrays in different Programming Languages
Arrays are one of the basic data structures that should be learnt by every programmer. Arrays stores a collection of elements, each identified by an index or a key. They provide a way to organize and access a fixed-size sequential collection of elements of the same type. In this article, we will learn about the basic use of array in most common languages like C, C++, Java, Python, etc.
Table of Content
- What is an Array?
- Implementation of array in C++:
- Implementation of array in C:
- Implementation of array in Java:
- Implementation of array in Python:
- Implementation of array in C#:
- Implementation of array in JavaScript:
- Pros and Cons of array: