Javascript

JavaScript introduction

JavaScript introduction

JavaScript is a high-level interpreted programming language. It’s a core technology alongside HTML and CSS for the World Wide Web (WWW). JavaScript is a great choice to start your coding career. It’s easy to learn and allows for dynamic behavior such as adding content, animations, and handling user input without the need to refresh the page.

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JavaScript is an open and cross-platform language. With the advent of environments like Node.js, JavaScript has become popular for server-side programming. This means that JavaScript can be used to write the server code that runs on a web server, not just in the user’s browser.

JavaScript is the most popular programming language among developers and is used by more than 63% of developers around the world. There are numerous applications and uses of JavaScript that make it worth learning. Let’s take a look at the most widely used applications of JavaScript.

Applications of JavaScript

Web development: JavaScript has been used to create responsive and interactive websites. It manipulates the Document Object Model (DOM) to make websites responsive and interactive. Frameworks like React, Angular, and Vue.js are widely used for building complex, modern web applications.

Mobile development: JavaScript frameworks like React Native and Ionic are used to develop cross-platform mobile applications. These apps can run on both iOS and Android platforms, allowing for a wider reach with a single codebase.

Game development: JavaScript can be used to develop simple web-based games. Libraries like Phaser and Three.js are famous for creating interactive 2D and 3D games that run directly in the browser without the need for additional plugins.

Internet of Things (IoT): JavaScript is increasingly used in the IoT domain. Platforms like Node-RED allow for integrating and automating IoT devices using JavaScript.

Machine learning and artificial intelligence: With libraries like TensorFlow.js, developers can implement machine learning models in JavaScript, enabling web applications to perform tasks like image recognition, natural language processing, and more.

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JavaScript syntax

JavaScript syntax

// Declaring a function
function greet(name) {
// Returning a greeting message
return "Hello, " + name + "!";
}
// Calling the function with a parameter
let message = greet("Alexa");
// Displaying the result
console.log(message);

In this example: A greet() function is declared, which takes one parameter called name. Inside the function, a greeting string is concatenated with name and returned. The function is then called with “Alexa” as the argument, and the result is stored in the message variable. Finally, the console.log() function is used to print the message to the console.

How to start learning JavaScript?

JavaScript is an easy-to-learn programming language requiring essential CSS and HTML knowledge. If you plan to start your career as a web developer, this is a perfect place to learn the basics of JavaScript and its syntax.

We’re covering all the basics of JavaScript that can help you learn to code and start your coding career. To learn JavaScript in detail, here are a few Educative courses and paths that can help you become a JavaScript developer.

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Start Learning JavaScript

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Data Types (1).png
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JavaScript Variables

JavaScript DataTypes

JavaScript Comments

Variables (1).png

JavaScript Variables

Data Types (1).png

JavaScript DataTypes

Comments (1).png

JavaScript Comments