Tlaster / NiL.JS

JavaScript engine for .NET written in C#.

NiL.JS

Open source ECMAScript 5.1 (JavaScript) engine. Licensed under BSD 3-Clause License.

• Easy integration.
• High performance.
• Works on Windows Runtime (Portable version)
• Support .NET 3.5.
• Support Mono.
• Compatible with ASP.NET.
• Automatic wrapping .NET objects. No changes are required.
• Support .NET namespaces (Standalone version).
• Compiler as a Service (CaaS).
• Integrated static analyser.
• Integrated debugger ("For developers" version).
• 99% of Sputnik tests passed.

Example

C#

Context.GlobalContext.DefineVariable("alert").Assign(new ExternalFunction((self, arguments) =>
{
    MessageBox.Show(arguments[0].ToString());
    return JSObject.Undefined; // or null
}));

JavaScript

alert("Hello!");

Links

Examples
NuGet
Code analyzer on this engine

Known bugs

Async

Execution of function in two or more threads gives incorrect result. To fix it, need to write "eval();" in any part of method body (e.g. after "return;"). But, better way to avoid this is to create functions dynamically for each thread using eval or Function("some code").

If you found bug

... then you can choose one of three paths:
1. Ignore it. Maybe, sometime, somebody finds it too and tell me about it.
2. Create bug report. It's will take some time, but reduce time for fixing it.
3. Fork project and fix bug by yourself, after that create pull request.

I hope you will not choose the first path.