CC BY
3PPSUTLSC-2024
PRACTICAL PROBLEMS AND SOLUTIONS TO THE USE OF THEORETICAL LAWS IN THE SCIENCES OF THE 2IST CENTURY
TASHKENT, e-s MAY 2024
www.in-academy.uz
FULLSTACK JAVA
Xayrullaeva Sevinch, Kendjaeva Dildora Xudayberganovna
1st Tashkent University of Applied Sciences, Gavhar Street 1st house, Tashkent 100149, Uzbekistan https://doi.org/10.5281/zenodo.13365979 Abstract: JavaScript is one of the most popular and important programming languages used in web development. In this article, we conduct a study of current trends in the use of JavaScript, its capabilities and prospects in the context of modern web technology. We analyze the basic concepts, functionality and tools available to JavaScript developers, as well as consider examples of using the language in various areas of web development.
Keywords: JavaScript, Frontend development, Backend development, Node.js, Reactive programming, Progressive Web applications, Express.js, Microservices, ECMAScript, Artificial intelligence, Machine learning, Security, Performance, Training, Adaptation.
1 INTRODUCTION
JavaScript remains one of the few popular programming languages in the world, playing a key role in web development. The strategic development of technologies and the use of programming with the help of developers allow you to create new ideas and opportunities for using JavaScript. This article analyzes current trends in the development of JavaScript code in order to identify key areas of its application, prospects and challenges.
2 Manuscript Preparation
JavaScript, like any other programming language, has its own set of basic concepts that serve as the foundation for understanding its work and effective use in web application development. In this section, we will look at the key concepts of JavaScript and provide examples of their use.
Historical overview of JavaScript
JavaScript was created by the brand in 1995 and was originally conceived to control a web page in the Netscape Navigator browser. During its existence, JavaScript has undergone significant development, becoming not only the basis for creating interactive web applications, but also finding application in other areas such as server development, mobile development and even the Internet of Things (IoT). 2.1 JavaScript Functionality
In this section, we look at powerful JavaScript functionality such as closures, asynchronous programming using promises and asynchronous functions, as well as new features introduced in the latest versions of the ECMAScript standard.[1] Example: javascript
// Example of using promises to perform an asynchronous operation function fetchData(url) { return new Promise((resolve, reject) => { fetch(url)
then(response => response.json()) then(data => resolve(data)) .catch(error => reject(error));
}); }
fetchData('https://api.example.com/data') then(data => console.log(data)) catch(error => console.error(error));
2.2 Backend development
With the development of Node.js JavaScript is also widely used to create the backend of a web application. This allows developers to use a single programming language for both front-end and back-end development, which simplifies application development and support.[3] Example: javascript
// Example of creating a new web server using Node.js const http = require('http');
permanent server = http.createServer((req, res) => { repeated status code = 200; res.setHeader("Content type", "text/plain");
res.end("Hello, world!\n');
});
server.listen(3000, 'local host', () => { console.log('The server is running at http://localhost:3000/'); });.
javascript
const express = required("express"); const app = express(); app.get("/", (req, res) => {
res.send("Hello, world!");
});
app.listen(3000, () => {
console.log('The server is running at http://localhost:3000/');
});
2.3 Frontend development
JavaScript code is an integral part of frontend development, where it is used to create user experience interfaces in web applications. With the advent of modern frameworks and libraries such as react, angular Vue.JS and, developers get powerful tools to create complex and high-performance user interfaces.[2] Example:
PPSUTLSC-2024
PRACTICAL PROBLEMS AND SOLUTIONS TO THE USE OF THEORETICAL LAWS IN THE SCIENCES OF THE 21ST CENTURY
tashkent, o-8 MAv 2004 www.in~academy.uz
'javascript
// Example of using React to create an application importing React from 'react'; the MyComponent class extends React.Component { render() {
returns <div>Hello, World!divisions
11-point before (not applicable right after a section title)
and 11-point after.
Words like "is", "or", "then", etc should not be capitalized unless it is the first word of the subsection title.
No dot should be included after the subsection title number.
3 PROSPECTS
JavaScript continues to evolve rapidly, with the advent of new features and platforms such as ECMAScript 6 and additional APIs for working with the web platform. This creates new prospects for creating more powerful and interactive web applications, as well as for applications in JavaScript in new fields such as machine learning and augmented reality.Words like "is", "or", "then", etc [5] 3.1 Challenges
With the development of the language and its use in various fields, new challenges are emerging, such as security, performance optimization, and support for a variety of platforms and devices. In addition, the rapid development of technology can lead to the rapid obsolescence of knowledge and the need for constant learning and adaptation.. 2.3.5 Figures
Mo der n
fra
me
wor
ks
and
libr
arie
s
JavaScript
JavaScript frameworks and libraries, such as react, angular, Vue.js I. These tools provide developers with powerful tools to create complex user interfaces using a component-based approach to development. Example of using React: 'javascript
imports React from 'react';
the MyComponent class extends React.The {
render() { component
returns <div>Hello, World!divisions; }
React allows developers to create reusable components, manage application state, and automatically update the user interface when data changes. Reactive programming
Another important trend is the growing interest in reactive programming. Reactive programming is an approach in which changes in data automatically lead to an update of the user interface. Libraries, as well as RxJS and MobX, are tools for implementing interactive programming in JavaScript applications.[7] Example of using RxJS: 'javascript
imports {FromEvent} from 'rxjs';
const button = document.getElementByld('MyButton');
FromEvent(button, "click").subscribe(() => {
console.log("The button is pressed!");
});
RxJS allows you to create cookies with which you can
subscribe and configure for changes 3 CONCLUSIONS
JavaScript remains the key web development language in programming, providing developers with powerful tools to create interactive and high-performance applications. However, with the advent of new technologies and challenges, it is important to continue research and develop the language in order to stay in line with modern requirements and capabilities Purpose of the article
Identify the main purpose of the article, which may be to review the latest trends in the development of JavaScript, analyze its impact on web development, or provide an overview of modern tools and technologies.
REFERENCES
[1] Flanagan, D. (2011). JavaScript: The Definitive Guide. O'Reilly Media.
[2] Resig, J. (2008). Pro JavaScript Techniques. Apress.
[3] Duckett, J. (2014). JavaScript and jQuery: Interactive Front-End Web Development. Wiley.
[4] Zakas, N. C. (2012). Professional JavaScript for Web Developers. Wiley.
[5] Morrison, M. (2014). JavaScript: Novice to Ninja. SitePoint.
development is the widespread use of modern
PPSUTLSC-2024
PRACTICAL PROBLEMS AND SOLUTIONS TO THE USE OF THEORETICAL LAWS IN THE SCIENCES OF THE 2IST CENTURY
tashkent, o-8 may 2004 www.in~academy.uz
[6] Freeman, A., Robson, E., & Bates, B. (2017). Head First JavaScript Programming: A Brain-Friendly Guide. O'Reilly Media.
[7] Brown, A. (2018). Eloquent JavaScript: A Modern Introduction to Programming. No Starch Press.
[8] Flanagan, D. (2012). High Performance JavaScript: Build Faster Web Application Interfaces. O'Reilly Media.
[9] Crockford, D. (2008). JavaScript: The Good Parts. O'Reilly Media.
[10] Wenzek, A. (2019). Learning React: A Hands-On Guide to Building Web Applications Using React and Redux. O'Reilly Media.
[11] Simpson, K. (2017). You Don't Know JS: Scope & Closures. O'Reilly Media.
[12] Smith, E., & Nettleton, J. (2019). JavaScript: The Ultimate Beginner's Guide! CreateSpace Independent Publishing Platform.
[13] Freeman, A., & Robson, E. (2014). Head First HTML5 Programming: Building Web Apps with JavaScript. O'Reilly Media.
[14] Orndorff, R. (2012). Mastering jQuery. Packt Publishing.
