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In today's fast-paced world, real-time data updates are becoming increasingly crucial for modern web applications. One popular solution for achieving real-time functionality is GraphQL subscriptions. In this article, we will explore how to implement GraphQL subscriptions in JavaScript, providing code examples, explanations, and a comprehensive understanding of the topic. Understanding GraphQL Subscriptions GraphQL is an open-source query language for APIs and a runtime for executing these queries with existing data. It allows clients to request specific data from the server, enabling efficient and flexible communication between the client and the server. While GraphQL queries and mutations are used for retrieving ... Read More
Functional programming is a popular paradigm in JavaScript development, emphasising immutability, pure functions, and higher-order functions. It promotes writing clean, concise, and maintainable code. To facilitate advanced functional programming techniques, several JavaScript libraries have emerged, providing powerful tools and utilities. In this article, we will explore three such libraries: Ramda, Lodash, and Immutable.js. We will dive into code examples, explain their features, and showcase the benefits they bring to functional programming in JavaScript. Ramda: Functional Programming made Easy Ramda is a powerful library that promotes functional programming in JavaScript. It focuses on immutability and provides a wide range of functions ... Read More
In recent years, blockchain technology has gained significant attention and revolutionised various industries. At its core, a blockchain is a decentralized, immutable, and transparent ledger that records transactions across multiple computers. One of the programming languages that has become popular for developing blockchain applications is JavaScript. In this article, we will delve into the intersection of JavaScript and blockchain technology, exploring how JavaScript can be used to interact with and develop applications on the blockchain. JavaScript and Blockchain: A Powerful Combination JavaScript, known for its versatility and wide adoption, has become a preferred language for building web applications. Its ability ... Read More
JavaScript has become a popular choice for game development due to its versatility and wide adoption across different platforms. To facilitate game development, several JavaScript game engines have emerged, each with its own set of features and capabilities. In this article, we will explore three popular JavaScript game engines: Impact.js, Babylon.js, and Cocos2d-js. We will delve into the theory behind these engines, provide code examples with outputs where possible, and conclude with a comparison of their strengths and weaknesses. Impact.js Impact.js is a robust and well-established JavaScript game engine that focuses on 2D game development. It provides a comprehensive set ... Read More
JavaScript error monitoring and logging are crucial for maintaining the stability and performance of your applications. In this article, we will explore advanced techniques that can help you effectively monitor and log errors in your JavaScript code. We'll cover global error handlers, try/catch blocks, stack traces, logging libraries, custom error classes, error reporting and notifications, and error tracking in production. Global Error Handlers Global error handlers allow you to catch and handle errors that occur during the runtime of your JavaScript application. By utilising window.onerror and window.onunhandledrejection, you can log or report errors and exceptions. Example window.onerror = function(message, url, ... Read More
The field of artificial intelligence known as "natural language processing" (NLP) focuses on how computers interact with human language. It entails the creation of algorithms and models that allow computers to comprehend, interpret, and generate human language. The Natural Language Toolkit (NLTK) library and Python, a universal programming language, provide powerful tools and resources for NLP tasks. In this article, we will look at the fundamentals of NLP using Python and NLTK, and how they can be used for a variety of NLP applications. Understanding Natural Language Processing Natural language processing encompasses a wide range of diverse tasks, including question−answering, ... Read More
In the world of web development, JavaScript is a versatile and powerful language that plays a crucial role in creating dynamic and interactive web applications. One of the key aspects of JavaScript is its ability to manipulate and transform data efficiently. In this article, we will explore advanced techniques for data manipulation and transformation using JavaScript. We will dive into various scenarios, providing code examples, explanations, and outputs to help you grasp these concepts effectively. Working with Arrays Arrays are fundamental data structures in JavaScript, and they offer several powerful methods to manipulate and transform data. Let's explore some ... Read More
ASCII (American Standard Code for Information Interchange), is a character encoding system that represents every character as a unique 7-bit binary code i.e. ASCII values are a numerical representation of characters. The ASCII values are 7-bit binary codes that range from 0 to 127. For Example, the ASCII code for a space character is 32, and for digit ‘1’ ASCII code is 49 and similarly ASCII codes are assigned to each character which is represented in an ASCII table. In Python, the ASCII code of a character can be computed using a predefined function ord(), which takes a character as ... Read More
Python, with its simplicity and versatility, has become one of the most popular programming languages for various applications. Whether you're a seasoned developer or just starting your coding journey, Python offers a wide range of functionalities and libraries that make complex tasks manageable. In this article, we will explore a practical scenario where Python can come to our rescue by automating the process of creating multiple directories based on a list. By harnessing the power of Python's built−in modules and techniques, we can efficiently handle this task without manual intervention. In this tutorial, we will delve into the problem of ... Read More
Voice-controlled applications have become increasingly popular in recent years, allowing users to interact with technology through speech rather than traditional input methods. JavaScript, being one of the most widely used programming languages for web development, provides a powerful platform for building such applications. In this article, we will explore how to utilise JavaScript and Speech Recognition APIs to create voice-controlled applications. We will dive into the process of setting up speech recognition, capturing and processing user speech, and implementing voice commands in your applications. Setting Up Speech Recognition Before we start building our voice-controlled application, we need to set up ... Read More