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Javascript Articles
Page 26 of 534
How to create a slider to map a range of values in JavaScript ?
In JavaScript, mapping a range of values to another range of values can be achieved through various approaches. One common method is by using a slider. A slider allows users to interactively select a value within a specified range and display the mapped value in real-time. In this article, we will explore how to create a slider in JavaScript and map a range of values from (0-100) to (100-10, 000, 000). Steps to create a Slider to map a range of Values in Javascript Step 1: HTML Structure First, we need to set up the HTML structure ...
Read MoreHow to create a Switch in ReactJS?
ReactJS is a popular JavaScript library for building user interfaces, and it provides an effective approach to developing interactive components. Toggle switches are frequently used to allow users to switch between dark mode and light mode themes in web applications. Toggle switches can also be used to show or hide specific content or sections of a page. In this article, we will explore how to create a toggle switch using ReactJS. Prerequisites Before proceeding with this tutorial, it is assumed that you have a basic understanding of ReactJS and have a development environment set up with Node.js and npm ...
Read MoreHow to create Tabs in ReactJS ?
ReactJS is a popular JavaScript library for building user interfaces. It provides a component-based approach to web development, making it easier to create interactive and dynamic UI elements. Tabs are a common UI pattern used to organize and present content in a user-friendly manner. In this article, we will explore how to create a tab component in ReactJS. Prerequisites Before reading this article, you should have a basic understanding of ReactJS and its core concepts. Make sure you have Node.js and npm (Node Package Manager) installed on your machine. Setting up a new React project First, ...
Read MoreHow to Declare Constants in React Class?
When developing applications with React, it's necessary to declare constants to store values that remain unchanged throughout the lifecycle of a component or application. Constants can help improve code readability, provide a central location for managing shared values, and enhance maintainability. In this article, we'll explore how to declare constants in a React class component. Importing React To begin, let's assume you have set up your React environment and have a class component ready for use. Before declaring constants, make sure you have imported the necessary libraries. This includes importing React, which is the core library for building ...
Read MoreHow to delay a loop in JavaScript using async/await with Promise?
Some time−consuming tasks are executed without blocking the main thread in Asynchronous programming. In certain cases, developers may need to delay the execution of a loop to control the flow of their program or introduce delays between iterations. JavaScript provides several techniques for delaying execution, and in this article, we will explore how to delay a loop using the combination of async/await and Promises. Understanding async/await The async/await syntax was introduced in ECMAScript 2017 (ES8) and provides a concise and readable way to write asynchronous code. It is built on top of Promises and allows developers to write ...
Read MoreHow to Create a Time Picker in ReactJS ?
ReactJS is a popular JavaScript library for building user interfaces. It provides developers with a flexible and efficient way to create interactive web applications. Time pickers are commonly used in applications where users need to select a specific time slot for booking appointments, scheduling events, or reserving resources. A time picker allows users to easily select the desired time and ensures accurate time allocation. In this article, we will create a time picker in steps using ReactJS. Setting Up the React App First, let's set up a ...
Read MoreHow to send an email from JavaScript?
Sending emails from JavaScript is a common feature in most web applications. It allows you to automate notifications, send user-generated content, or facilitate communication with your users. We can use different methods like using Mailto protocol, sending emails with a server-side language, and implementing email sending through an API to send emails from JavaScript. In this article, we will explore all of these methods to send email using JavaScript. Basics of Sending Email Before implementing the email-sending feature using different libraries and methods we need to understand what are the basic requirements to send emails. At a high ...
Read MoreHow to Check a String Starts/Ends with a Specific String in jQuery?
JavaScript provides several built-in methods to check if a string starts or ends with specific characters. While jQuery is excellent for DOM manipulation, these string operations are handled by native JavaScript methods that work efficiently without any additional library. In this article, we'll explore various approaches to verify if a string begins or ends with another string using practical examples. Using startsWith() Method The startsWith() method is the most direct way to check if a string begins with specific characters. It's case-sensitive and returns a boolean value. Syntax str.startsWith(searchString, position) Parameters ...
Read MoreAdvanced Functional Reactive Programming (FRP) with JavaScript and RxJS
Functional Reactive Programming (FRP) is a powerful paradigm that combines functional programming concepts with reactive programming. By leveraging FRP, developers can build highly responsive and scalable applications by modeling the flow of data and events as streams of values. JavaScript, being a widely used language for web development, can benefit from FRP through libraries and frameworks. One popular library is RxJS (Reactive Extensions for JavaScript), which provides a rich set of tools for implementing FRP in JavaScript. In this article, we will explore advanced techniques of Functional Reactive Programming using JavaScript and RxJS. Understanding FRP and Reactive Programming ...
Read MoreAdvanced JavaScript Patterns: Singleton, Decorator, and Proxy
JavaScript is a versatile programming language that allows developers to create dynamic and interactive web applications. With its vast array of features and flexibility, JavaScript enables the implementation of various design patterns to solve complex problems efficiently. In this article, we will explore three advanced JavaScript patterns: Singleton, Decorator, and Proxy. These patterns provide elegant solutions for managing object creation, adding functionality dynamically, and controlling access to objects. Singleton Pattern The Singleton pattern ensures that a class has only one instance and provides a global point of access to it. This pattern is useful when we want to ...
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