Flow.org is described as 'Flow is a static type checker for JavaScript that we built at Facebook. The overall mission of Flow is to deliver an immersive coding experience for JavaScript developers—a fast edit-refresh cycle—even as the codebase evolves and grows' and is an website in the development category. There are more than 10 alternatives to Flow.org, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and BSD apps. The best Flow.org alternative is JavaScript, which is both free and Open Source. Other great sites and apps similar to Flow.org are TypeScript, Google Chrome Developer Tools, Firefox Developer Tools and Web Developer.
JavaScript (sometimes shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but also used in many non-browser environments.
TypeScript is a language for application-scale JavaScript development. It is a typed superset of JavaScript that compiles to plain JavaScript in any browser, any host, any OS and it is Open Source.
The Google Chrome Developer Tools provide an integrated environment for debugging, optimizing, and understanding a web application, or website, running in Google Chrome. The developer tools are developed partly through the WebKit open source project, where the tools are called...
Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile.
The Web Developer extension adds various web developer tools to a browser. The extension is available for Chrome, Edge, Firefox, and Opera, and will run on any platform that these browsers support including Windows, macOS and Linux.
Cross platform development tools for native iOS, Android, desktop and server applications. B4X is a Rapid Application Development (RAD) tool for real world apps. The programming language is a modern version of Visual Basic.
ReScript is a robustly typed language that compiles to efficient and human-readable JavaScript. It comes with a lightning fast compiler toolchain that scales to any codebase size.
The Bosque programming language is an experiment in regularized design for a machine assisted rapid and reliable software development lifecycle.
MicroPython aims to implement the Python 3.4 standard (with selected features from later versions) with respect to language syntax, and most of the features of MicroPython are identical to those described by the “Language Reference” documentation at docs.python.org.
SplineTech JavaScript Debugger is the fastest independent standalone JavaScript Debugger that enables you to debug JavaScript for IE completely independently of any add-ons, plug-ins, Java or any other third-party proprietary tools.
Real-Time JavaScript Tool is a portable tool that allows JavaScript codes to be executed in Real-Time!
Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.
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