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Articles by Rushi Javiya
Page 11 of 14
TypeScript - Type erasure and error behaviour?
TypeScript is a popular programming language that offers features such as type checking and type annotations to help developers write more robust and maintainable code. However, when TypeScript code is compiled into JavaScript, the type information is lost in a process called type erasure. This can lead to errors at runtime that are difficult to diagnose and fix. In this article, we will explore the concept of type erasure in TypeScript and how it can affect error behaviour in our code. Type Erasure Type erasure is the process of removing type information from a program during compilation. In TypeScript, this ...
Read MoreHow is TypeScript an optionally statically typed language?
TypeScript is an open-source programming language developed and maintained by Microsoft. It is a superset of JavaScript, which means that all valid JavaScript code is also valid TypeScript code. TypeScript adds optional static typing, classes, interfaces, and other features to JavaScript to improve code quality, maintainability, and scalability. In this article, we'll explore how TypeScript is an optionally statically typed language, what that means for developers, and how it can benefit them in their projects. What is Optional Static Typing? Static typing is a programming language feature that allows developers to define data types for variables, function parameters, and function ...
Read MoreHow to create your own TypeScript type definition files (.d.ts)?
TypeScript, a superset of JavaScript, offers static typing capabilities that enhance code quality and catch errors during compilation. To fully leverage TypeScript's static typing features, it's crucial to have type definition files (.d.ts) for external JavaScript libraries and modules used in projects. These type definition files describe the types and interfaces exposed by the external entities, enabling the TypeScript compiler to understand their shape and behaviour. In this article, we'll explore the step-by-step process of creating custom TypeScript type definition files, empowering developers to benefit from static typing in their projects. Prerequisites Type definition files (.d.ts) serve as an interface ...
Read MoreHow internal is different from external modules?
TypeScript, an extension of JavaScript, introduces modules as a means to structure and organize code effectively. Modules play a vital role in developing scalable and maintainable applications by enabling code encapsulation and reusability. TypeScript supports two types of modules: internal (namespaces) and external (ES modules). In this article, we will delve into the differences between internal and external modules in TypeScript, exploring their characteristics and impact on code organization and sharing within a project. Internal Modules Internal modules, also known as namespaces, serve as logical containers within a single file to group related code elements together. They offer benefits such ...
Read MoreHow to compile .ts automatically with real-time changes in .ts file?
TypeScript is a popular programming language widely used for developing large-scale applications. It is a superset of JavaScript and adds optional static typing, interfaces, and generics to the language. When working with TypeScript, it is crucial to have a smooth development workflow that includes automatically compiling .ts files with real-time changes. In this article, we will explore the different tools and techniques that can be used to achieve this. Why Automatically Compile TypeScript Files? When working on a TypeScript project, developers often make changes to the .ts files. After making changes, they must compile these files to get the corresponding ...
Read MoreJava Competitive Programming Setup in VS Code with Fast I/O and Snippets
Introduction In this tutorial, we will walk you through the process of setting up a Java development environment in Visual Studio Code (VS Code) and introduce you to some useful tools and techniques for competitive programming, including fast input/output (I/O) techniques and useful code snippets. Setting up Java Development Environment in VS Code To start coding in Java within VS Code, follow these steps − Install Java Extension Pack− Open VS Code and navigate to the Extensions view by clicking on the square icon on the left sidebar or by using the shortcut Ctrl+Shift+X (Windows/Linux) or Cmd+Shift+X (Mac). Search ...
Read MoreJava I/O Operation - Wrapper Class Vs Primitive Class Variables
Java Input/Output (I/O) operations play a crucial role in handling various types of data, allowing us to read from and write to different sources such as files, network connections, and standard input/output streams. When dealing with input and output in Java, we encounter situations where we need to handle both primitive and object types of data. Java provides two options to facilitate this: wrapper classes or working directly with primitive class variables. This tutorial will teach us about Wrapper Classes and Primitive Data Types. For using these, each approach has its advantages and considerations, which we will delve into to ...
Read MoreJava Generics to Code Efficiently in Competitive Programming
Java generics provide a mechanism for writing reusable and type-safe code. They allow classes, methods, and interfaces to operate on different data types while providing compile-time type checking. One of the primary advantages of using generics in competitive programming is the ability to create generic data structures. These data structures, such as stacks, queues, linked lists, and trees, can be implemented once and reused across multiple problem-solving scenarios. This tutorial will give examples of Java generics and some methods used in competitive programming. Java Generics By utilizing Java generics, you can create versatile and efficient code that can handle a ...
Read MoreJava Extension Methods
In this tutorial, we will explore Java Extension Methods, a powerful feature introduced in Java 8. Extension methods allow developers to add new functionality to existing classes without modifying their source code. This feature is especially useful when working with library classes or third-party APIs, as it enables us to extend their capabilities without having to subclass or create wrapper classes. Syntax Users can follow the syntax below to create extension methods in Java− public interface SomeInterface { static returnType methodName(arguments) { // Method implementation } } ...
Read MoreJava Error - All Illegal Modifier Combinations for Methods w.r.t Abstract
In Java, there are certain illegal modifier combinations when it comes to abstract methods. Abstract methods are methods declared in an abstract class, which do not have an implementation in the abstract class itself but must be implemented in its concrete subclasses. Understanding these illegal modifier combinations is crucial to writing proper, error-free Java code. Let's explore these illegal combinations and why they are not allowed in Java. Abstract Class and Abstract Method in Java In Java, an abstract class is a blueprint that cannot be directly instantiated. It serves as a template for other classes and can contain both ...
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