Overview To perform a certain task first we need to access that particular element by its class or by id so before accessing the element we check whether that class is present in that particular element or not. The classList object contains the built-in method classList.contains() in JavScript. This method determines whether the given element belongs to the specified class. This whole process will take place, as first we have to access that element by getElementById(), getElementsByClassName(), or any other method. After accessing it, we have to check for the class with the classList.contains() method. Syntax The syntax used in ... Read More

Sharing code between the backend and front end of a full-stack application can be a challenging task. However, it's essential for building maintainable and scalable applications. By sharing code, we can avoid code duplication, reduce development time, and maintain consistency across our applications. In this tutorial, we'll explore different techniques for sharing code between Node.js and the browser and learn how to choose the best approach for our project. Techniques for Sharing Code Between Node.js and the Browser Users can follow the approaches below to share code between node.js and the browser − CommonJS Modules CommonJS modules are ... Read More

Overview The existence of a key in an object can be checked using AngularJS. The key in an object is unique and cannot be duplicated. As object is a collection of different data types in Key-Value form, which contains String, Number type of data into a single reference variable. To check the existence of a key, we will use the "in" operator, which will check the object and return true or false. Syntax The syntax used in this problem is − if (key in objectName ) { action } else { action } ... Read More

In Material UI, the Paper component is very similar to the card component, and basically, it also creates a card of the required dimensions. The main difference between the Card and Paper components is the ‘Elevation’ prop. The Elevation props allow setting the box shadow for the Paper component to add 3D effects. Syntax Users can follow the syntax below to use the Paper component of Material UI. Example 1 (Basic use of Paper Component) In the example below, we added the Paper component inside the Box component of Material UI. Also, we have set the dimensions ... Read More

The links are important for any application to navigate different web pages. We can use the tag to create links in the HTML. However, the Material UI library provides the Link component to create a stylish link. Users can execute the below command to install the Material UI library in the React project. npm install @mui/material @emotion/react @emotion/styled Syntax Users should follow the syntax below to use the Link component of Material UI. Link In the above syntax, href takes a link to the targeted web page. Example 1 (Basic Link ... Read More

JavaScript and jQuery contain various plugins, and every plugin contains a couple of functions. JavaScript plugin works as a library, and we can use its code directly in our code. The jQuery touch event plugin is also a library used to detect touch events in mobile devices and execute some functions when a touch event occurs. Using the CDN, we can add the jQuery touch event plugin to the HTML. If users are working with the Node application, they should execute the below command in the project directory to add the jQuery touch events plugin to the application. ... Read More

The readonly is an HTML attribute that we can add to any HTML tag. Whenever we use the readonly attribute with any HTML element, it becomes non-editable. Users can’t write into the text field but can only read. In this tutorial, we will learn to add the readonly attribute to the HTML element using the various methods of jQuery. Use the attr() method of jQuery The attr() method of jQuery sets the attribute to the HTML element. It takes two parameters, and we can pass the attribute name as the first parameter and the attribute value as the second ... Read More

The grid means the structure of rows and columns like a table. When we create a table using the HTML tag, we can create every row and column of different dimensions, but the Grid component of the Material Ui library allows us to do so. We can use the Grid component of the Material UI as a container and item. Also, we can adjust the grid automatically according to the dimensions of the device screen. Users first need to install the Material Ui library to use the Grid component in the React project using the below command. ... Read More

Overview In today's world there are various browsers available on the system. So sometimes there are certain Cascading Style Sheets (C.S.S.) property that does not run on that browser. So to check which CSS properties are supported for that specific browser, JavaScript has the in-built method CSS.supports(), which checks whether that specific property is supported by the browser or not. The supports() method is supported by all the browsers: Opera, Edge, Chrome, and Firefox. Syntax The CSS.supports() method takes a key-value pair as input, which is in String format. The basic syntax used is − CSS.supports(“propertyName:value”); supports() − ... Read More

The fab component is a short form of the floating action button. You may have seen the floating action button in many Android applications at the bottom right corner. However, it's not fixed that you need to add the floating action button at the bottom right corner, but it is the most used place. Users can use the Fab component of Material UI to create floating action buttons with different icons. To start with the Material UI, execute the below command in the terminal in the React project directory. npm install @mui/material @emotion/react @emotion/styled Syntax Users can ... Read More