Logo

Developer learning path

News
JavaScript

Array methods in JavaScript

Introduction to JavaScript
What is JavaScript? How it works? History of JavaScript
Basic Concepts in JavaScript
Variables Data Types Operators Control Flow
Functions and Data Structures
Functions Builtin functions Userdefined functions Parameters and Arguments Arrays Indexes and length Array methods
ObjectOriented JavaScript
Object and Properties Constructors Inheritance Prototype
DOM Manipulation
What is DOM? Accessing HTML elements with JavaScript Manipulating HTML elements with JavaScript Events and event handling
Asynchronous JavaScript
Callbacks Promises Async/await Asynchronous data loading AJAX
jQuery
What is jQuery? Selecting and manipulating HTML elements with jQuery jQuery events
Browser APIs
Working with Web Storage Location API Navigator API Geolocation API Canvas API
Expressions and Regular Expressions
Boolean expressions Regular expressions
Debugging and Testing JavaScript
Debugging basics Chrome Developer Tools Unit testing Testing frameworks
JavaScript Libraries and Frameworks
Introduction to libraries and frameworks React.js Angular.js Vue.js Node.js
Deploying JavaScript Applications
Deploying for the Web Hosting options
Ecmascript6 Features
Classes Arrow functions Promises Destructuring of Objects and Arrays Default parameters and Spread Operator
Security and Best Practices in JavaScript
Security basics Best practices for writing safe and maintainable JavaScript code Code optimization techniques
Conclusion
Recap of the course Next Steps.

Array methods

54

#description

Arrays are an essential part of JavaScript programming, and understanding how to work with arrays effectively is crucial to writing efficient and concise code. Array methods are built-in functions that you can use to manipulate arrays. There are many array methods offered in JavaScript that can help you to search, filter, sort, add, or remove elements in an array.

Here are some of the most commonly used array methods with brief descriptions:
  1. push(): This method is used to add one or more elements to the end of an array.
  1. pop(): This method is used to remove the last element from an array.
  1. unshift(): This method is used to add one or more elements to the beginning of an array.
  1. shift(): This method is used to remove the first element from an array.
  1. slice(): This method is used to create a new array that contains a portion of the original array.
  1. splice(): This method is used to add or remove elements from an array.
  1. concat(): This method is used to merge two or more arrays into a single array.
  1. includes(): This method is used to check if an array contains a specific value.
  1. indexOf(): This method is used to find the index of a specific element in an array.
  1. find(): This method is used to find the first element in an array that meets a specific condition.
  1. filter(): This method is used to create a new array with all elements that meet a specific condition.
  1. map(): This method is used to create a new array by modifying each element in an existing array.

By mastering these array methods, you can efficiently manipulate arrays, making your code more concise and optimized.

March 25, 2023

If you don't quite understand a paragraph in the lecture, just click on it and you can ask questions about it.

If you don't understand the whole question, click on the buttons below to get a new version of the explanation, practical examples, or to critique the question itself.