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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.
jQuery first came-out long before browsers had querySelector: it used a 100% JS reimplementation of a CSS selector parser and evaluator, which was eventually spun-off into its own library: Sizzle.js: https://github.com/jquery/sizzle - Surprisingly, jQuery didn't fully remove Sizzle until 2019 ( https://blog.jquery.com/2019/04/10/jquery-3-4-0-released/ ) - if that seems surprisingly recent, don't forget that querySelector wasn't added to the DOM API until 2013 - with only IE11 supporting it: some places were still using even IE6 well past then, so it makes sense for jQuery to support it for so long.
So using newer CSS selector features, like attribute value selectors, will work fine in post-Sizzle jQuery versions.