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Web Development Articles
Page 774 of 801
How to test if an element has class using Protractor?
We will learn to use the protractor test if an element has class using Protractor. Protractor is an end-to-end testing framework for Angular and AngularJS applications. Protractor is built on top of WebDriverJS, a JavaScript implementation of the WebDriver API, and supports multiple browsers such as Chrome, Firefox, and Safari. Testing if an element has a specific class is important because it allows us to check if a certain style or behaviour is applied to the element as intended. This is especially useful in scenarios where the presence or absence of a specific class triggers certain styles or behaviours. By ...
Read MoreHow to use protractor to wait for new tab to be created?
Popular end-to-end testing framework Protractor performs tests against a web application in a real browser, mimicking user interactions. It is used with Angular and AngularJS apps. A new tab or window may open when a user hits a link or button in an online application. This is a typical scenario. It is crucial in these circumstances to wait for the new tab to be formed before making any additional changes to it. We can use the browser to wait for Protractor to open a new tab in conjunction with the browser's wait() feature. The method getAllWindowHandles() A list of all ...
Read MoreHow to use Button Component in Material UI?
The button is used to perform some actions like form submission, file upload, link click, web page routing etc. The Material Ui provides the pre-styled button component, which users can import into the React application and use inside the React component. Different variants of the button are available in the Material UI, and users can use any according to their requirements. Execute the below command in the terminal to install the Material UI library. npm install @mui/material @emotion/react @emotion/styled Syntax Users should follow the syntax below to use the Button component of the Material Ui library. Click ...
Read MoreHow to use Box Component in Material UI?
As the Box name suggests, it allows users to add the box of different dimensions on the web page. Users can also add any custom HTML content inside the Box component. Also, users can style the box by passing the style as props. To use the Box component of Material UI, users need to run the below command in the terminal to install the Material library. npm install @mui/material @emotion/react @emotion/styled Syntax Users should follow the syntax below to use the Box component of the Material UI library. Content of the Box. Users can see how ...
Read MoreHow to use API inside callbacks using jQuery DataTables plugin ?
In jQuery, the DataTables plugin allows us to add some extra features to the HTML table. When you create a table using the raw HTML, it looks unformatted. So, we need to style it using CSS. Also, we need to add some functionalities to the table, like pagination, searching into the table, and sorting in ascending and descending order according to a particular column's data. So, this all can take lots of effort from one developer. What if I say we add all functionalities using the DataTables plugin? Yes, you heard right. Here, we will look at the different examples ...
Read MoreHow to use CircularProgress Component in ReactJS?
The circular progress bar is an attractive UI for any application. We can show the circular loading indicator whenever our application fetches data from the server; users are uploading files or downloading data. Here, we will learn different approaches to creating a circular progress bar using the various libraries. Use the React-circular-progressbar NPM Package The react-circular-progressbar is an NPM package, and we can import the ‘circularProgressbar’ component. It takes value as a prop to show circular progress. Users should execute the below command in the terminal to install the react-circular-progressbar NPM package in the React application. npm i react-circular-progressbar Syntax ...
Read MoreHow to shard test files in protractor?
Sharding is a method for distributing data or tasks across several machines to improve performance and scalability. Sharding is a technique used in test automation to distribute test cases among various instances of the testing framework and speed up test execution. Protractor is a testing framework that facilitates sharding test cases using the Jasmine test framework. To shard test files in Protractor, a configuration file must be written that details the path of the test files and the number of instances to be created. To shorten the overall test execution time, Protractor divides the test cases across several instances and ...
Read MoreHow to update mouse location when scrolling with jQuery?
In jQuery, we can trigger the ‘mousemove’ event to detect the mouse pointer's location on the web page. Also, we can detect the scroll using the ‘scroll’ event and subtract that value from the y position to get the relative mouse location. Using the ‘overflow-y: scroll’ CSS property, we can make any div scrollable. Syntax Users can follow the syntax below to get the relative mouse position while scrolling on the div. $('#main').scroll(function (event) { if (finalScroll != $('#main').scrollTop()) { location_y -= finalScroll; finalScroll = ...
Read MoreHow to show/hide div element depending multiple values using Bootstrap and jQuery?
Sometimes, we may require to show and hide div based on the selected values. For example, you want to show the registration or login forms based on the radio button's selected value. Below, we will learn to show/hide the div elements based on the selected value using JQuery. Show/hide the div Element Depending on the Selected Value From the Select Menu In JQuery, we can get the selected option’s value from the ‘select’ menu. After that, we can access the div element according to the selected option value and show them. Syntax Users can follow the syntax below to show/div ...
Read MoreHow to speed up/down the video in Video.js Player?
In this tutorial, we're going to learn how to speed up a video or speed down a video using video.js. Video.js is a widespread and open-source HTML5 video player framework. It allows video playback on a variety of platforms with varying screen sizes, such as desktop computers and mobile devices. The project, which began in the middle of 2010, already has hundreds of contributors and is utilized on over 450, 000 websites. Apart from this, Video.js also gives a variety of options for changing and customizing the video players to your preference. For the purpose of this tutorial, we're going ...
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