The MEAN stack is a popular web development framework consisting of MongoDB, Express.js, Angular.js, and Node.js. It is an open-source platform that allows developers to create robust web applications quickly and efficiently. In this article, we will guide you through the installation and setup process of the MEAN stack on Ubuntu. Step 1: Install Node.js and NPM Node.js is the runtime environment that allows developers to run JavaScript code outside of the browser. It is the backbone of the MEAN stack. To install Node.js on Ubuntu, follow these steps − Open the terminal on Ubuntu by pressing Ctrl+Alt+T. Type the ... Read More

Two well-liked JavaScript-based front-end web development frameworks used to create contemporary online apps are AngularJS and ReactJS. Although though both frameworks can handle data-driven applications, for example, they differ greatly in terms of their design, programming paradigms, and development strategies. Developers must be aware of the differences between AngularJS and ReactJS in order to choose the best framework for their individual project requirements. We will compare and contrast AngularJS and ReactJS in this lesson, outlining their advantages and disadvantages to assist developers in selecting the ideal framework for their web development projects. What is AngularJS? An open-source front-end web ... Read More

AngularJS is a prevalent and potent framework for creating the front-end of web applications, enabling developers to produce dynamic and interactive web pages with great ease. An essential aspect of AngularJS is the capability to modify HTML elements and their characteristics dynamically, offering greater flexibility and customization to developers. One such conventional circumstance is dynamically altering the source Uniform Resource Locator (URL) of an image, which can be highly advantageous in diverse web-based programs. In this scholarly composition, we shall delve into the methodology of modifying the image source Uniform Resource Locator (URL) using AngularJS, and ascertain how to utilize ... Read More

Ajax which stands for Asynchronous JavaScript and XML is a set of techniques used in web development that allow the web pages to update the data without refreshing the entire web page. It can load and display data dynamically and respond to user input simultaneously giving a seamless user experience. With the help of this technique, the data can be sent and retrieved from the server asynchronously. The essential components used while implementing Ajax consist XMLHttpRequest (XHR) object − The XHR object sends HTTP requests to the server and receives responses. Server-side script − processes the data and returns ... Read More

We will learn to use protractor to wait for the element’s attribute to change to a particular value. Protractor is an end-to-end testing framework for Angular and AngularJS applications. Protractor has built-in support for waiting for Angular-specific elements to load and be ready before performing test operations. We need to learn this topic to ensure that tests only proceed when specific elements are ready, avoiding errors and improving the accuracy of the test results. Waiting for an attribute to change to a particular value also helps identify and debug issues related to data manipulation and other dynamic events on the ... Read More

We will learn to use Protractor to check whether text is present in an element or not. Protractor is an end-to-end testing framework for Angular and AngularJS applications. It uses WebDriverJS and runs tests written in Jasmine or Mocha, allowing for automated browser testing of web applications. Protractor can simulate user interaction with the application, test for expected behaviour, and report on test results. It also includes several features designed specifically for Angular, such as the ability to wait for Angular-specific elements to load before executing tests. Note − To use a protractor, ensure that the protractor installation and setup ... Read More

We will learn to use Protractor to check if an element is visible. Protractor is an end-to-end testing framework for Angular and AngularJS applications. It uses Selenium WebDriver to automate browser interactions and provides a high-level API to write tests in JavaScript or TypeScript. It uses Jasmine as the test framework. It provides many features, such as automatic synchronization with the AngularJS application, page object model support, and more. Note − To use a protractor, make sure that installation and setup of the protractor have already been done. User may need to set the Execution Policy to ‘RemoteSigned’ Or ‘Unrestricted’ ... Read More

We will learn to use protractor to test the name of the tag of an element. Protractor is an end-to-end testing framework for Angular and AngularJS applications. Protractor is built on top of WebDriverJS, which is a JavaScript implementation of the WebDriver API, and supports multiple browsers such as Chrome, Firefox, and Safari. It is popular among developers and testers because it provides a simple and effective way to test Angular applications without having to write complex code. Learning how to test the name of the tag of an element using a Protractor is a crucial aspect of automated testing ... Read More

We will learn to use a protractor to test the ID of an element. Protractor is an end-to-end testing framework for Angular and AngularJS applications. Protractor is built on top of WebDriverJS, which is a JavaScript implementation of the WebDriver API and supports multiple browsers such as Chrome, Firefox, and Safari. It is popular among developers and testers because it provides a simple and effective way to test Angular applications without writing complex code. Learning how to test the id of an element using Protractor is important for web developers and quality assurance (QA) testers who want to ensure that ... Read More

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 More