Codepen react unexpected token, js:6, which is a really normal line

Codepen react unexpected token, Aug 4, 2022 · On Codepen, go to Settings -> JS -> JavaScript Preprocessor and select “Babel”. io/ALL9000/pen/rNJqjzQ?editors=0010 Mar 13, 2016 · I keep having Uncaught SyntaxError: Unexpected token ( at pen. Jan 2, 2026 · The "Unexpected token '<'" error in React is a common hurdle for beginners, but it’s almost always caused by fixable issues with JSX syntax, file setup, or transpilation. Use ES6/Babel to transform you JS code into vanilla JavaScript. I have added reference to React and React DOM. I want to create a portfolio website of my projects. js:121 on my code on codepen, which causes it to abort execution, although it is working in Brackets &amp; other editors and other peo 1 Use the following code. Apr 8, 2023 · I've created my first Github Pages website and am attempting to move all the HTML, CSS, and JS/React code for the projects I built in Codepen to Github Pages. . Sometimes you might face an issue that the render () method can't find the target element. after ward the d3 projects started working in both full mode and editors mode . Nov 14, 2021 · I am working through a coding test for a job interview which is using codepen as the environment. Note that Render method comes from ReactDOM and make sure that render method has a target specified in the DOM. Jul 8, 2025 · The JavaScript exceptions "unexpected token" occur when the parser does not see a token it recognizes at the given position, so it cannot make sense of the structure of the program. Oct 9, 2024 · You know something doesn’t belong, but you're left guessing what that "token" is and why it's unexpected. This might be a simple typo. Let's demystify what’s really going on behind the scenes and get your code running smoothly again. however reactjs projects stopped working on either i am attaching a pic of my codepen dash board to show you that it was working before thats how code pen was able to take a snapshot Jun 14, 2022 · React JSX inline SVG on Codepen Uncaught SyntaxError: Unexpected token '<' Asked 3 years, 5 months ago Modified 3 years, 5 months ago Viewed 298 times Jun 8, 2022 · Hello, Someone can help me with this error in codePen: https://codepen. The error that show up on the console log is Uncaught SyntaxError: Unexpected token '<' main. Dec 7, 2020 · Would you mind sharing the link to your CodePen/Repl? Taking a guess, I would say it is because you have not correctly imported the React/ReactDOM scripts into the project. Learn how to resolve the common "SyntaxError: Unexpected token < in JSON at position 0" error in React, often caused by incorrect API responses. js:6, which is a really normal line. May 16, 2021 · I'm trying to create a simple website using React, but for some reason it just displays a blank page. I worked locally for past day and after copy pasting code into codepen I am getting Unexpected Token Mar 14, 2019 · Now 2 to 3 days back each of my react and d3 code pen stopped working for a day. Now (without you having to do anything) the JSX will be converted to valid JS before it runs.


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