# Jurassic

**Repository Path**: octoberkey/Jurassic

## Basic Information

- **Project Name**: Jurassic
- **Description**: A .NET library to parse and execute JavaScript code. 
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-05-06
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

![Jurassic](https://raw.githubusercontent.com/wiki/paulbartrum/jurassic/logo.png)

[![Build status](https://ci.appveyor.com/api/projects/status/rx2xy5srhmv3kbkd/branch/master?svg=true)](https://ci.appveyor.com/project/paulbartrum/jurassic/branch/master)

## What is Jurassic?

Jurassic is an implementation of the ECMAScript language and runtime. It aims to provide
the best performing and most standards-compliant implementation of JavaScript for .NET.
Jurassic is not intended for end-users; instead it is intended to be integrated into .NET
programs. If you are the author of a .NET program, you can use Jurassic to compile and
execute JavaScript code.

## Features
* Supports all ECMAScript 3 and ECMAScript 5 functionality, including ES5 strict mode
* Well tested - passes over five thousand unit tests (with over thirty thousand asserts)
* Simple yet powerful API
* Compiles JavaScript into .NET bytecode (CIL); not an interpreter
* Deployed as a single .NET assembly (no native code)
* Basic support for integrated debugging within Visual Studio
* Uses light-weight code generation, so generated code is fully garbage collected
* Tested on .NET 3.5, .NET 4 and Silverlight

## How do I get it?

Install the [NuGet package](https://www.nuget.org/packages/Jurassic/).

## Usage

See the [wiki](https://github.com/paulbartrum/jurassic/wiki) for full usage details.

## ECMAScript 6 status

Support for ECMAScript 6 is in progress. See http://kangax.github.io/compat-table/es6/ for the definition of each feature.

Feature|Status
-------|------
**Optimisation**|
  proper tail calls (tail call optimisation)|:x:
**Syntax**|
  default function parameters|:x:
  rest parameters|:x:
  spread (...) operator|:x:
  object literal extensions|:x:
  for..of loops|4/9
  octal and binary literals|:white_check_mark: 4/4
  template literals|2/5
  RegExp "y" and "u" flags|:x:
  destructuring, declarations|:x:
  destructuring, assignment|:x:
  destructuring, parameters|:x:
  Unicode code point escapes|:white_check_mark: 2/2
  new.target|:x:
**Bindings**|
  const|2/16
  let|1/12
  block-level function declaration[13]|:x:
**Functions**|
  arrow functions|:x:
  class|:x:
  super|:x:
  generators|:x:
**Built-ins**|
  typed arrays|44/46
  Map|17/19
  Set|17/19
  WeakMap|10/12
  WeakSet|9/11
  Proxy[18]|:x:
  Reflect[20]|:x:
  Promise|:white_check_mark:
  Symbol|5/11
  well-known symbols[21]|5/26
**Built-in extensions**|
  Object static methods|3/4
  function "name" property|5/17
  String static methods|:white_check_mark: 2/2
  String.prototype methods|:white_check_mark: 10/10
  RegExp.prototype properties|2/6
  Array static methods|1/11
  Array.prototype methods|9/10
  Number properties|:white_check_mark: 7/7
  Math methods|:white_check_mark: 17/17
  Date.prototype[Symbol.toPrimitive]|:white_check_mark: 1/1
**Subclassing**|
  Array is subclassable|:x:
  RegExp is subclassable|:x:
  Function is subclassable|:x:
  Promise is subclassable|:x:
  miscellaneous subclassables|:x:
**Misc**|
  prototype of bound functions|:x:
  Proxy, internal 'get' calls|:x:
  Proxy, internal 'set' calls|:x:
  Proxy, internal 'defineProperty' calls|:x:
  Proxy, internal 'deleteProperty' calls|:x:
  Proxy, internal 'getOwnPropertyDescriptor' calls|:x:
  Proxy, internal 'ownKeys' calls|:x:
  Object static methods accept primitives|7/10
  own property order|2/7
  miscellaneous|6/10
**Annex b**|
  non-strict function semantics[29]|2/3
  \_\_proto\_\_ in object literals[30]|:x:
  Object.prototype.\_\_proto\_\_|1/6
  String.prototype HTML methods|:white_check_mark: 3/3
  RegExp.prototype.compile|:white_check_mark: 1/1
  RegExp syntax extensions|4/8
  HTML-style comments|:x: