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Product News : JS++ 0.4.2 Released
on 2016/10/25 12:14:12 (544 reads)
Product News

Onux announced the release of JS++ 0.4.2 Early Access Preview. JS++ is a programming language for building high-quality web and mobile applications that expands the original JavaScript language with types, classes, and other new features. The latest release of JS++ introduces modules, function overloading, dead code elimination, better integration with Microsoft Windows, and 16 new editor integrations.


Emacs Syntax Highlighting for JS++

JS++ 0.4.2 introduces the module keyword and enables modular design. The application entry point occurs at the “main file”. See the documentation for the main file for more information.

In addition, at the compiler level, JS++ gives you full access to static linking and dead code elimination. Dead code elimination means that all unused code will not be compiled into the final generated output. One of the biggest pain points in JavaScript is that you need to include the entire jQuery library just to use one function. With npm and the “micro-library” revolution, JavaScript code has grown and grown in size. Web pages take longer to load because they depend on megabytes of JavaScript to be downloaded, and this is especially painful over mobile connections. Dead code elimination solves this: if you didn’t use it, it doesn’t end up in the code you ship.

Please note that dead code elimination is a JS++ feature only. It cannot be retroactively applied to JavaScript code effectively. For example, JS++ is a superset of JavaScript that introduces structure, such as the module keyword. Unlike JavaScript prototypes, these structures cannot be modified at runtime. Therefore, the compiler is fully able to analyze which classes, variables, and functions actually get used and eliminate the ones that don’t get used. If your code is structured with JavaScript prototypes rather than JS++ classes and modules, dead code elimination will be a lot less effective.

JS++ 0.4.2 also introduces function overloading. All unused overloads and unused functions (even if not overloaded) will not be compiled in the final output via dead code elimination.

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