Our great sponsors
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volder
volder is powerful Object schema validation lets you describe your data using a simple and readable schema and transform a value to match the requirements
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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.
volder is javascript npm package, it's powerful Object schema validation, it lets you describe your data using a simple and readable schema and transform a value to match the requirements, it has custom error messages, custom types and nested schemas.
see more example: https://github.com/alguerocode/js-volder