More and more web applications come, and users are choosing these growing applications because of their simplicity, high speed, and high availability. Single-page applications (SPAs) account for a large portion of this flow, typically built with frameworks such as Angular, Vue.js, and React.js. These popular frameworks help developers deliver the best possible user experience across multiple platforms in a short amount of time. However, interested and leading developers targeting this market can enter the competition with a new and functional framework.
What is Svelte?
But the main difference of this framework is that unlike others that leave a large part of the work to the browser, the code written in Svelte is first compiled and then executed as a final product in the user’s browser. This makes the program run faster and creates a better user experience.
Svelte is fast
As we said in the previous section, the execution time of the program with Svelte is fast. Because this framework only updates the parts of the user interface that have changed. Also, unlike Vue.js and other frameworks that use virtual DOMs, Svelte does not use a virtual DOM. But what is a virtual DOM? When a page is created in the user’s browser, elements are displayed on the screen called UI. These elements are created in the form of a tree called the DOM or Document Object Model.
Svelte is small
Svelte programs are very small because Svelte is not only a framework but also a compiler.
Consider a React project to compare the startup process. With the yarn build command, Web Pack + Babel is for to build the package of project files, cleans them, adds react-dom and react libraries to the collection, packs the output file, and finally generates an output file.
Contrary to this trend, Svelte compiles the components of the project. So the program runs independently on different browsers. Svelte uses a structure like Web Pack within itself and decides to output only the parts of the framework used by your code.
Svelte can be used as a library to develop an application independently or as part of another application. Because it does not have a different implementation and uses the same process as in React, Vue or Angular. In these cases, Svelte is used to develop components that can be used anywhere, and their implementation does not depend on any framework.