React is a javascript library. It is used for building user interfaces. I will discuss 10 important things that every react developer should know.
- Virtual Dom: In simple virtual dom is the copy of the actual dom. Every time a change happened to the dom, the virtual dom compares the virtual dom and the actual dom elements. If anything changes then update and display the change on the UI.
2.JSX: JSX means javascript XML. It makes it so easier to write HTML code in javascript. It looks like HTML but it rendered into regular javascript code.
Default props: Default props is like javascript function default parameter. If any components props are not provided then default props are used in that.
PropTypes: Sometimes a developer didn't do anything wrong but react app shows a warning. To avoid this you can use the
prop types package.Performance optimization: Internally a react application has huge dom actions that can slow down your application. For this reason, you should use the minified version of your app. You can create a production build version to run the npm run build.
Components: React is not a framework it is a tiny library of javascript. React is created to build a user interface on a web application nothing much. Every small piece of a web application should be a component. This could be a small button or any text etc.
Expression: You can use any javascript expression in JSX using {} curly braces because JSX is not HTML it is javascript XML. Every JSX code translated into regular javascript.
Stateful component: In react you can create a component with a state or without a state. The class component is a stateful component.
Stateless component: In react stateless components are popular at this time. This is also called hook based component or functional component.
Hooks: Hooks must be used in the functional components. you can't use hooks in the class component. In real all hooks are javascript functions that used in specific work.
Top comments (0)