Since we have destructured the props already, we can simply access them anywhere in the function by using propName.attribute. Here’s an example of a function: export default function Welcome(props) As the names themselves define the words, functional components are like writing a simple JavaScript function whereas class components are like writing a JavaScript class. The syntax when writing functional and class components are quite different. Therefore, here is a distinct comparison to highlight the odds and evens of both components under the criteria mentioned below. With both class and functional components being the hot topic in recent days and the competitive debate amongst the react development community, many developers are in the bubble of uncertainty in determining which one to use when developing react apps. Hence, this is why React is called “React” - it detects changes in the virtual DOM by comparing it with the actual DOM and reacts to it by updating the actual DOM respectively. Therefore, we need not work with the DOM API in the browser like with vanilla JavaScript or JQuery. React will then compare this element in the virtual DOM with the actual DOM and update the real DOM to keep it in sync. Thus, when we change the state of a component, we get a new React element. React keeps a lightweight representation of the DOM in memory, which we refer to as the Virtual DOM. The render method returns a JavaScript object that maps to a DOM element. The render method renders the UI, and it will usually have HTML or JSX code. The state is the data we want to display when rendering the component. No! There are several other libraries and frameworks that can be used to build mobile and web applications, such as Flutter and Angular respectively. Is React JS and React Native the only mobile and web applications?
With many communities and guidance across the internet, surely this can be achieved quite easily. And to learn React JS, you need to have prior knowledge of HTML, CSS, and JavaScript. To learn React Native, you would have to learn React JS. The logic is the same with React Native, but it’s more specific to building mobile applications. React JS is an open source JavaScript library that segments the DOM from the virtual DOM and brings an innovative approach to state management when building web applications. To begin with, let's understand React first! Being in and contributing to React JS and React Native communities on Facebook and other platforms, this question kept coming up, so here I am to shed some light.
I’ve been a React JS developer for the past one and a half years.
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