Models Components that handle requests or events including business rules and data processing. Web components are blocks of code that encapsulate the core structure of HTML elements including CSS and JavaScript and enable the code to be used anywhere in websites and web apps. Introduction; Lightning Web Components is a new programming model for building Lightning components. For example. For example, let’s add an attribute called fill to our element: Note: this refers to the DOM element itself i.e. For example, if you need to ensure that some code runs before the DOM attached to the document, you need to know where to place the code for that event. The following are their key features: To create a Custom Element, you need to use JavaScript and the define method. Neat! Web components are based on four main specifications: The Custom Elements specification. The examples described above for web components only work if you use the individual elements of the web components model together. Also, give Daniela, the creator of the post, some love by tweeting her @DannaGeorgieva. Hybrids — Open source web components library, which favors plain objects and pure functions over class and this syntax. This is the best time to learn and start early with Lightning Web Components, which offer the latest web standards, delivers unprecedented performance and productivity and interoperate seamlessly with existing code. For example: var div = document. Their names are DOM strings and always contain a hyphen. ) made with a set of JavaScript APIs. For example. To overcome this we need to … It consists of a collection of HTML, CSS, and JavaScript components that Twitter released under the MIT free license in 2011, as well as a variety of extensions, interfaces for content management systems, and pre-built themes. Using this element you can place a video with just a few of lines of code, for example: You may only be seeing a few lines of HTML above, but here's what the