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JavaScript

How it works? 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.

How it works?

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#description

JavaScript is a programming language that is predominantly used for web development. It is a high-level, interpreted language that is executed in the browser. JavaScript is primarily used for creating dynamic websites, interactive user interfaces, and web applications.

JavaScript works by adding dynamic behavior to HTML documents. By using JavaScript, developers can create a range of interactive features on a webpage such as pop-up dialog boxes, dynamic form validation, animations, and much more.

From a technical perspective, JavaScript code is executed by the browser's JavaScript engine. Popular JavaScript engines include Google's V8, Apple's Nitro, and Mozilla's SpiderMonkey. These engines analyze the code and translate it into machine language that the browser can execute.

JavaScript is often compared to Java; however, the two are fundamentally different languages. Java is a compiled language that is executed by the Java Virtual Machine (JVM), whereas JavaScript is interpreted by the browser's JavaScript engine. Additionally, Java is used for server-side programming, while JavaScript is primarily used for client-side programming.

Overall, understanding how JavaScript works is essential for any web developer. By knowing how JavaScript is executed in the browser, developers can write more efficient and high-performing code that delivers a better user experience.

March 25, 2023

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