React Js Code Examples

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React Js Code Examples

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42 how to add javascript in reactjs nerd answer introduction react js

42 How To Add Javascript In Reactjs Nerd Answer Introduction React Js

For example jsx const heading h1 Mozilla Developer Network h1 This heading constant is known as a JSX expression React can use it to render that h1 tag in our app Suppose we wanted to wrap our heading in a header tag for semantic reasons The JSX approach allows us to nest our elements within each other just like we do with HTML jsx Create a new React application to try out any of these examples using the free online tool CodeSandbox You can do so instantly by visiting react new Table of Contents React Fundamentals JSX Elements Components and Props Lists and Keys Event Listeners and Handling Events Essential React Hooks State and useState Side Effects and useEffect

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