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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.
This article showed how to implement an example WebSocket application in which the server sends the current time to its connected clients. Setup and configuration of a WebSocket connection becomes very easy with using the socket.io library.
The server has two responsibilities: To accept incoming client connections, and to send time-information to all registered clients. The server itself will be written with Express.
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The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.