In JavaScript, you can use the .naturalWidth and .naturalHeight properties of the HTMLImageElement object to get the original width and height of an image, respectively. These properties return the dimensions of the image file itself, not the dimensions it is displayed at on the webpage. Here's an example of how to use them: var img = document.getElementById("my-image"); var width = img.naturalWidth; var height = img.naturalHeight; console.log(width + " x " + height); Alternative
A HTML form is a section of a web page that allows a user to enter and submit data, such as text fields, checkboxes, and radio buttons, to a web server. The server can then process the data and return a response. Forms are typically used for tasks such as searching for information, logging in to a website, or placing an order. The data entered into a form is sent to the server using the HTTP protocol, and can be processed using a server-side scripting language like PHP or Python. Html For
In this article, we will conver the following operations on image using the React JS. Upload an Image to the server using React JS Download an Image from the server using React JS Convert an Image to Base64 Encode Display a base64 image using React React Js Upload Image to the Server In React, you can use a html form to upload an image by allowing the user to select a file and then sending that file to a server. Here is an example of how you can create a form that allows a user to select
Lazy loading is a technique used in computer programming to defer the initialization of an object until the point at which it is needed. This can help to improve performance and reduce memory usage by avoiding the creation of unnecessary objects. In web development, lazy loading is often used to defer the loading of images or other resources until they are visible on the screen, which can improve the loading time of a web page. Lazy Loading Implementing Methods There are several ways to implem
The Node Js clsx is a utility function for conditionally joining class names together in a way that is optimized for performance. Here are some examples of how to use clsx: import clsx from 'clsx'; // Basic usage const className = clsx('foo', { bar: true, baz: false }); // "foo bar" // With an array const className = clsx('foo', ['bar', 'baz']); // "foo bar baz" // With multiple objects const className = clsx('foo', { bar: true
A package.json file is a manifest file in a Node.js project that describes the project's dependencies, scripts, and other metadata. It is typically located in the root of the project directory and is used by the npm package manager to manage the project's dependencies. The file is in JSON format, and it typically includes information such as the project's name, version, author, and a list of dependencies. The dependencies are the packages that the project relies on in order to fu
In Node.js, there are three types of dependencies: Dependencies: These are the packages that are required for the application to run properly. They are listed in the "dependencies" section of the package.json file. Dev Dependencies: These are the packages that are only needed for development, such as testing or building tools. They are listed in the "devDependencies" section of the package.json file. Optional Dependencies: These are packages that are not required for the application to r
The manifest.json file in a Node.js application is a JSON file that contains metadata about the application. This file is typically located in the root directory of the application and is used to define information such as the application's name, version, and entry point (the file that starts the application). It can also include other information such as dependencies, scripts, and web application manifest properties. The file is used by other tools, such as package managers or build syste
Toastify is a JavaScript library that allows you to create customizable "toast" notifications for your web application. Toast notifications are small, non-intrusive pop-up messages that appear on the screen to inform the user of a specific event or action, such as a successful form submission or an error message. Toastify allows you to easily create and customize these notifications using JavaScript, and provides a variety of options for controlling their appearance and behavior. Some features
There are several ways to save data on a browser using JavaScript, including: 1.localStorage: This allows you to store key-value pairs and persists until explicitly deleted. localStorage.setItem("key", "value"); localStorage.getItem("key"); 2.sessionStorage: This is similar to localStorage, but the data is cleared when the browser tab or window is closed. sessionStorage.setItem("key", "value"); sessionStorage.getItem("key"); 3.Cookies: Cookies are small text files stored on
In Angular, you can input a component into another component using the @Input decorator. The @Input decorator allows you to define a property on the child component that can be set from the parent component's template. Input a Component into Another Component in Angular Here's an example of how you might use the @Input decorator to pass data from a parent component to a child component: Parent Component In the parent component's class file, you can define a property that you want to
JavaScript arrays are a powerful data structure that allows you to store and manipulate a collection of items. In this article we will explore the arrays and also the most common methods used on arrays. JavaScript Array Examples Here are a few examples of how you can work with arrays in JavaScript: Creating an Array To create an array, you can use the Array constructor or the array literal notation. For example: let emptyArray = new Array(); let arrayWithItems = new Array(1, 2
Lazy loading is a technique used to defer the loading of resources (such as images or videos) until they are actually needed by the user. This can be useful for improving the performance of a website or web application, especially on mobile devices or slow internet connections. In the context of a collection list with filters, lazy loading can be implemented by only loading a portion of the collection at a time and then loading more items as the user scrolls down the page. Additionally, the f
A try-catch block is a control flow statement used in programming to handle exceptions, or unexpected events that occur during the execution of a program. The basic structure of a try-catch block is as follows: try { // code that might throw an exception } catch (error) { // code that runs when an exception is thrown } The code inside the try block is the section of the program that may throw an exception. If an exception is thrown, execution of the try block is stopped and
JavaScript has several control structures that allow you to specify the flow of execution in your program. In this article, we will see the following control structures If..Else For Loop While Loop Do While Loop We will go through each one of these in detail with examples. Conditional statements Conditional statements allow you to execute a block of code only if a certain condition is met. Here we will explore the if..else statement with several options. If Statement The
JavaScript is a programming language that is commonly used to create interactive effects within web browsers. It is a high-level, interpreted language that is widely used to create web applications, and it is supported by all modern web browsers. Here are some basic concepts in JavaScript: Variables: Variables are used to store data in JavaScript. You can declare a variable with the var keyword, and assign a value to it using the assignment operator =. For example: var name = "John";
If a user tries to access a website that uses JavaScript on a browser that does not support JavaScript, they may see a warning message indicating that JavaScript is required to view the content of the site. This message may vary depending on the browser, but it generally indicates that the user needs to enable JavaScript in order to view the content. To enable JavaScript in a browser that does not support it, the user will need to install a browser that does support JavaScript, or they will n
JavaScript is a programming language that is commonly used to create interactive effects within web browsers. It is a high-level, interpreted language that is widely used to create web applications, and it is supported by all modern web browsers. JavaScript is an object-oriented language, which means that it is based on the concept of objects that have properties and methods. It is also a dynamically-typed language, which means that you do not need to specify the data type of a variable when
Javascript Synchronous vs Asynchronous Calls In my first article, we will compare the javascript synchronous and asynchronous calls with real-time examples. Understanding this concept will help you with coding functions that need to be called as per the business use case. Javascript Synchronous Call In JavaScript, a synchronous call is a blocking call that stops or waits for the called code to finish executing before moving on to the next line of code. Here is an example of a synchro