Introducing Web Components
For developers, reusing code wherever possible saves both time and money. With the way websites were built in the past, organizing complex HTML and CSS styles could get messy and cause problems. The Web Components suite seeks to solve these problems.
There are three main technologies to consider when talking about Web Components:
- HTML templates: The elements <template> and <slot> allow you to create reusable markups for custom elements and can then be repeated as the foundation of a custom element’s structure.
- Shadow DOM: A hidden part of the DOM that enables Web Components to operate and function properly and allows us to obscure certain elements from end users. In short, this gives users the ability to create a private or public API.
The Friendly Ghost of the DOM
No, we are not talking about Casper. We’re referencing one of the great technologies associated with Web Components: The Shadow DOM.
The Shadow DOM can be described as a scoped DOM tree within an element, or “a DOM within a DOM.” It enables Web Components to be self-sustained in a page. By creating this encapsulation, pages can have individual components that are stylized within themselves and can be manipulated, changed, or created without affecting the other components.
Advantages and Disadvantages of Using Web Components
Today, websites are being built with more functionality than ever before, but as we all know, “With great functionality comes even greater responsibility.”
With Web Components, scrutinizing the JS code and taking valuable engineering time is not required because these components are easily replicated and are independent of each other. This saves businesses money because the components can be reused in other parts of the application, which leads to better and faster builds and deploys.
The Evergreen Chrome Solution to Aid Automatic Scripting
Using JS selectors, located in Chrome DevTools, users can select elements inside the Shadow DOM, easily aiding the automatic scripting process.
With the release of JS selectors, users only need to copy the JS path from the desired component of the page from Chrome DevTools and paste that into the Rigor platform. The Shadow DOM is no longer in the shadows! Check it out:
To learn more about how the Rigor platform can painlessly dive deeper into the Shadow DOM, incorporate Web Components into your automatic scripting process, and easily monitor your single page applications, reach out now for a free trial.
Special thanks to contributing writer Gabriel Ferrari.
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