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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.
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p5.js
p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Processing. http://twitter.com/p5xjs —
Franc is a JavaScript package that allows you to detect the language of a given text. I have included a small program to illustrate how it works. You can provide the program with a paragraph of text, and it will use the franc library to try to detect its language. Note that the functionality doesn't work great when provided with a shorter text.
Named Entity Extraction identifies entities like names, locations, or phone numbers inside a given text. Compromise is a JavaScript package that we can use that allows us to not only extract entities in a text but also identify what types of entities they are. Here is a sample program that allows you to enter a text file into the input field, and it would extract and identify any recognizable entities in that text.
Chart.js is an easy-to-use package that can help you quickly create various kinds of charts and visualizations from your data. Here is an example of a line graph of some random data that is drawn using Chart.js.
One awesome library that you might want to check out for creating 3D graphics is Three.js. Three.js is a widely adopted technology that is used to create all kinds of unique 3D content and experiences on the web. Here is an introductory 3D scene created using Three.js. It simply consists of a 2d plane and a 3d sphere and camera. It tries to capture a certain amount of realism by using interactive lighting, shadows, and textures.
p5.js is a great library for creating visuals and animation and doing artistic explorations using code since it makes it easy to create visualizations.
Another strong option in this category that is important to mention is D3.js. D3.js is substantially harder to get started with than Chart.js, but it is great if you have complex and custom data visualization requirements. Take a look at the D3.js gallery to see the variety of things you can achieve with it.