Why is React not good?

ReactJS components are difficult to reuse in complex interactive web projects . ReactJS’s Virtual DOM algorithm is time-consuming and imprecise. ReactJS’s HTML templates are neither complete nor powerful. ReactJS requires complicated asynchronous programming while communicating with the server.

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Does CodePen support JavaScript?

You can add JavaScript libraries to your Pen through the JavaScript settings menu . There are two ways to access the JavaScript settings menu. For quickest access, click the gear icon in the upper left of the JS editor panel. That opens the Pen Settings menu with the JavaScript tab automatically selected.

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How do you run things in CodePen?

By default, every time you save your project runs and automatically updates the preview. You can save and run your project by clicking the “Save All + Run” button in the header . You can also use the keyboard shortcut to save your current file (Command + S for Mac, CTRL + S for PC).

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