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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Let’s take a look at how you can make a basic drag-and-drop Gantt chart component using vanilla JavaScript. You can find all the code used below in our GitHub repository.
The CSS will be defined in JavaScript files. We will use JavaScript modules to split the code into separate modules that can be imported and exported, so we’ll need a local HTTP server to run the code. We need to do this because JavaScript modules follow the same-origin policy, which means that you cannot import modules from your file system by default. To get a local server with live reload, you can install the npm Live Server package. If you are using VS Code, you can install the Live Server extension.