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https://github.com/NerdLang/nerd

🔱 Javascript's God Mode. No VM. No Bytecode. No GC. Just native binaries.
https://github.com/NerdLang/nerd

arduino compilation js nodejs raspberry wasm

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🔱 Javascript's God Mode. No VM. No Bytecode. No GC. Just native binaries.

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No VM. No Bytecode. No packaging. No Garbage Collector. Fully compiled to native binaries.




# NectarJS becomes Nerd



Compile JavaScript and NerdLang in native binaries.



# What is NerdLang



NerdLang is a substract of JS with some additions, focus on efficiency.



**Nerd** is a **JavaScript native compiler** aiming to make JavaScript universal, Nerd is able to compile native apps for Windows, Mac, Linux, iOS, Android, Raspberry, STM32 and more.



> **Nerd** is in active development, join us on [Discord](https://discord.gg/cpe2UuN) if you need more information.



- [Roadmap on Trello](https://trello.com/invite/b/6F4rvEj2/ATTI8842296bacc92724fa8b4114fe1dc80aA9FA431B/nerd)



## Main objectives

* Supporting EcmaScript 3 standard (then 5, 6 ...)

* Supporting NodeJS and NPM ecosystem

* Supporting a maximum of platforms (Windows, Mac, Linux, Android, Arduino, ...)

* Being secure

* Embeding debuging tools

* Compile everything that can be transpiled in JS: Ruby (Opal), Python (Transcript, Brython, JavaScrypthon), TypeScript ...



# Get started



## Installation



### Install GCC/CLang for your platform



- Windows

Install Mingw and Clang for Windows here: http://winlibs.com/ or Clang here: https://releases.llvm.org/



You can also install Linux for Windows and use a linux system on Windows



You need MinGW with POSIX threads



- Linux / FreeBSD

Install it with your distro (apt install gcc, yum install gcc, ...).

You can use GCC, CLANG, as well as any derivative of those compilers (arm-gcc ...)



- Apple iOS

Install xCode and you are ready.



You can check your installation with `npm start njs_test`



## Usage



Simplest way to use Nerd:

```

nerd file.js / file.ng

```



The output file name will be automatically chosen regarding the target. You can specify another output with `-o something.out`



You can select a preset

```

nerd file.js --preset [none|speed|size]

```



You can also run the compiled executable just after compilation using --run:

```

nerd file.js --run

```



You can enable the quiet mode with --quiet:

```

nerd file.js --quiet

```



Changing the stack size (useful on Windows):

```

nerd --stack 10000000 flood.js

```



For more informations about compilation output, use `--verbose`



For help, use `--help`



# Benchmarks



* _Need update_



Compiled with GCC v10.2.0 on Windows



|           | NodeJS v12.8.1 | QuickJS 2020-07-05 | Nerd v0.6.104 |

|-----------|----------------|--------------------|-------------------|

| sort(1e6) [No preset]                                               |

| - Time:   |      0.33s     |         -          |     **0.33s**     |

| - Memory: |      7.0Mb     |         -          |     **1.0Mb**     |

|- Filesize:|     28.6Mb     |         -          |     **424Kb**     |

| sort(1e6) [+Size preset]                                            |

|- Filesize:|     28.6Mb     |         -          |     **260Kb**     |

| sort(1e6) [+Speed preset]                                           |

| - Time:   |      0.33s     |         -          |     **0.20s**     |

| matrix(256) [No preset]                                             |

| - Time:   |      0.33s     |         -          |     **0.21s**     |

| - Memory: |      7.0Mb     |         -          |     **1.0Mb**     |

|- Filesize:|     28.6Mb     |         -          |     **405Kb**     |

| matrix(256) [+Size preset]                                          |

|- Filesize:|     28.6Mb     |         -          |     **251Kb**     |

| matrix(1e6) [+Speed preset]                                         |

| - Time:   |      0.33s     |         -          |     **0.11s**     |



* _Some code can be evaluated compile-time_



# Supported platforms



Actively tested for



- Windows

* - win-x86-32

* - win-x86-64

- Linux

* - linux-x86-32

* - linux-x86-64

* - linux-arm32v7

- Arduino

* - arduino-nano

* - arduino-uno

* - arduino-mega1280

* - arduino-mega2560

- STM32 Nucleo

* - nucleo-l152re

* - nucleo-l432kc

* - nucleo-f446re

- Mobile

* - android

- Web

* - wasm

* - wast

* - asm-js

- macOS

- Sun OS



# Development



This project is in heavy development and a lot features are not implemented yet.



## ECMAScript Support



Nerd already supports more than 80% of ES3.



Prototype




 

* .call()

* .bind()



Array




 

* .length

* .push(value)



Class




 

* constructor

* methods

* static methods



Console




 

* .log(variadic)



JSON




 

* .parse(str) 

* .stringify(obj)



Math **(DONE)**




 

* [All static methods and constants]



Object




 

* .keys



performance




 

* timeOrigin

* .now()



String





* .length

* .toString()

* .indexOf(needle)

* .lastIndexOf(needle)

* .search(needle)

* .slice(start, end)

* .substring(start, end)

* .substr(start, end)

* .replace(needle, str)



Syntax




 

* for

* while / do while

* if / else if / else

* try / catch / finally

* function / lambda

* class

* new

* typeof

* instanceof

* undefined

* null

* Infinite

* NaN / isNaN

* true / false