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What is the Lightning Web Component(LWC)? LWC is a new programming model to create lightning components. It was introduced in Feb 2019. Lightning Web Components are being used by developers for creating UI. Lightning Web Components are custom HTML elements built using modern HTML and JavaScript. These components can coexist and interoperate with Aura components on a single page, seamlessly appearing as Lightning components to administrators and end users. Lightning Web Components are available in Enterprise, Performance, Unlimited, and Developer editions of Salesforce. Built upon core Web Components standards, Lightning Web Components focus on delivering optimal performance in browsers supported by Salesforce. By leveraging native browser capabilities, these components are lightweight and provide exceptional performance. The majority of the code you write for Lightning Web Components consists of standard JavaScript and HTML. Benefits of Using LWC Easy to Learn The Lightning Web Compone...

Lightning Web Components Tests  Unit 1: Get Started with Testing  What are the main differences between unit and end-to-end testing? Unit tests are not as fast as end-to-end tests. End-to-end tests don’t typically cover the entire application. End-to-end tests never use the browser. Unit tests are small and discrete where end-to-end tests cover the whole user experience. Unit tests tend to be large and cover all aspects of the application. Which are the main benefits of unit testing? They are fast, precise, and simulate a real user experience. They are fast, precise, and reliable. They cover many features in one test. They cover many features and simulate a real user experience. They test how everything works together. Unit 2: Set Up Jest Testing Framework Which of the following best describes Jest? ...