Jul 24, 2019 · I am very new to reactjs and javascript in general, and I'm trying to figure out how to get this simple js code to work in my reactjs file. I want the text to turn red onClick. I have tried: Creating an external js file and importing it using Helmet to insert a tag

Apr 1, 2020 · If you want to import the script inside the react component, you can use the following options. Option 1: Use plain Javascript and React custom hook. Create custom hook [useScript.js] useEffect(() => { const script = document.createElement('script'); script.src = url; script.async = true; document.body.appendChild(script); return () => {

Apr 10, 2025 · The import and export syntax available in ES6 (ECMAScript 2015) module is used to include a JavaScript file in another JavaScript file. This approach is the most modern and recommended way to share code between JavaScript files.

Jun 7, 2017 · In general we recommend installing packages from npm and using import to access them from the source. But if you must use a prebuilt JS file that you don’t want to import, you can add it to the public folder (for example, public/mylib.js) and then add this to public/index.html: Then you can access the global variable from your app, for example:

Jul 5, 2023 · In this post, we will discuss how to load JavaScript (.js) source files from a script tag in React. The script tag is a piece of HTML that allows you to embed external JavaScript files into your webpage.

Feb 2, 2024 · We can import a JS file in one of two ways in React: Use import/export | ES6 module; Use Default Exports; Use import/export (ES6 Module) to Import JS File Into ReactJS. Let’s begin by importing and exporting using the ES6 method. But, first, create the method and constants listed below in a file called helper.js.

Make a new JS file to put the components in. Export your function component from that file (using either default or named exports). Import it in the file where you’ll use the component (using the corresponding technique for importing default or named exports).

Mar 19, 2023 · The easiest way to add an external JavaScript file to your React.js application is by using a Content Delivery Network (CDN). A CDN is a network of servers that delivers web content to users...

The webpage outlines four methods for adding external JavaScript files in React applications, ranging from using npm packages like react-script-tag and React Helmet to manual DOM manipulation and React Hooks.

Apr 1, 2023 · You might have come across instances where you would want to include a third-party javascript directly in your react application, like including analytics script or some library directly from the CDN. In this article, we will see different ways to include JavaScript inside a …