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   "source": [
    "# The Most Powerful Language Nim\n",
    "\n",
    "- 2018/12/5 "
   ]
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   "source": [
    "# Table of Contents\n",
    "\n",
    "- Overview\n",
    "- Features\n",
    "- Comparison with Other Languages\n",
    "- Other\n",
    "- Reference\n"
   ]
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   "source": [
    "# What is Nim?\n",
    "\n",
    "- beautiful grammar \n",
    "- very fast processing speed!"
   ]
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   "source": [
    "# Overview\n",
    "\n",
    "![](https://pbs.twimg.com/media/DfkRK-GW0AAXf1G.png)\n",
    "\n",
    "- Document\n",
    "    - [https://nim-lang.org/](https://nim-lang.org/)\n",
    "- GitHub\n",
    "    - [https://github.com/nim-lang/Nim](https://github.com/nim-lang/Nim)\n",
    "- Twitter\n",
    "    - [@nim_lang](https://twitter.com/nim_lang)\n",
    "- First appeared: 2008\n",
    "- ver 0.19.0"
   ]
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   "source": [
    "## Paradigm\n",
    "\n",
    "- compiled\n",
    "- concurrent\n",
    "- procedual\n",
    "- imperative\n",
    "- object oriented\n",
    "- functional "
   ]
  },
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   "source": [
    "## Typing Dicipline\n",
    "\n",
    "- static\n",
    "- strong\n",
    "- inferred"
   ]
  },
  {
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   "metadata": {
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   },
   "source": [
    "# Qiita (2018/11)\n",
    "\n",
    "- number of posts to Qiita\n",
    "![](https://i.gyazo.com/cc7b889a19c79a6597400ae85364c639.png)"
   ]
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   "source": [
    "- other languages..\n",
    "\n",
    "| Language | number of post |\n",
    "|------|------|\n",
    "| Python | 22098 |\n",
    "| JavaScript | 22190 |\n",
    "| Java | 10420 |\n",
    "| C++ | 5092 |\n",
    "| Haskell | 1765 |\n",
    "| Rust | 929 |\n",
    "| Dlang | 324 |\n"
   ]
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   "source": [
    "# Features\n",
    "\n",
    "- very fast\n",
    "- Python look alike syntax\n",
    "- can use C library\n",
    "- can compile to C, C++, Objective-C or JavaScript\n",
    "- metaprogramming\n",
    "- pragma\n",
    "- GC\n",
    "- Binary size is small"
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   "source": [
    "## Benchmark\n",
    "\n",
    "- vs other languages\n",
    "    - C(optimized) > Nim > Rust(optimized) > Go > Dart > JS > Julia >> Python\n",
    "    - http://h-miyako.hatenablog.com/entry/2015/01/23/060000\n",
    "- vs NumPy\n",
    "    - Nim > NumPy > Python\n",
    "    - https://narimiran.github.io/2018/05/10/python-numpy-nim.html\n"
   ]
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   "source": [
    "## Syntax\n",
    "\n",
    "- look alike Python\n",
    "- not Terminal Semicolon;\n",
    "- not {Brase}\n",
    "- nest with indentation\n",
    "- understandable!\n",
    "- ![](https://i.gyazo.com/a7c620a29c246ada72c1954618e04f8b.png)\n",
    "- ↓ all the same\n",
    "- ![](https://i.gyazo.com/1ad3c10450b790879ef52d17c390d4cd.png)\n",
    "\n",
    "- ref: [Nim for Python Programmers](https://github.com/nim-lang/Nim/wiki/Nim-for-Python-Programmers)"
   ]
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   "source": [
    "## Can Use C Library\n",
    "\n",
    "- import C code\n",
    "![](https://i.gyazo.com/4bfe4b6297a64937c699c02f80f6c1c2.png)  \n",
    "![](https://i.gyazo.com/dc78296e546de039a62c62f62a60442a.png)\n",
    "- C in Nim\n",
    "![](https://i.gyazo.com/4628cc157818cddf76f8c3f121fedbc1.png)"
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   "source": [
    "## Compile to JS\n",
    "\n",
    "- optimized\n",
    "- ex. to JS\n",
    "![](https://i.gyazo.com/c284f5e24983c87cde1763d267ad2051.png)"
   ]
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   "source": [
    "## Metaprogramming\n",
    "\n",
    "- generics\n",
    "- template\n",
    "- macro"
   ]
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   "source": [
    "## [{. Pragma .}](https://nim-lang.org/docs/manual.html#pragmas)\n",
    "\n",
    "- give the compiler\n",
    "    - optimized \n",
    "    - additional infromation\n",
    "    \n",
    "![](https://i.gyazo.com/7234bab63d4d46ce7add3abaf6d475dd.png)"
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   "source": [
    "## [GC](https://nim-lang.org/docs/gc.html)\n",
    "\n",
    "- Cycle Collector\n",
    "- fast\n",
    "- incremental\n",
    "- pauseless\n",
    "\n",
    "- ![](https://nim-lang.org/assets/img/features/gc_latency.png)\n",
    "- [quote source](https://nim-lang.org/features.html)\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "\n"
   ]
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   "source": [
    "## Binary Size\n",
    "\n",
    "- small\n",
    "![](https://nim-lang.org/assets/img/features/binary_size.png)\n",
    "- [quote source](https://nim-lang.org/features.html)"
   ]
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   "source": [
    "# Comparison with Other Languages\n",
    "\n",
    "### Rivals\n",
    "\n",
    "- C, C++, D, Rust, Go\n",
    "\n",
    "### vs Rust\n",
    "\n",
    "- [第二プログラミング言語として Rust はオススメしません Nim をやるのです - 強まっていこう](http://wolfbash.hateblo.jp/entry/2017/07/30/193412)\n",
    "\n",
    "### vs Go\n",
    "\n",
    "- [イケてないのに人気がある golang vs イケてるのに人気がない Nim - 強まっていこう](http://wolfbash.hateblo.jp/entry/2017/10/02/163017)"
   ]
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   "source": [
    "# Other\n",
    "\n",
    "\n"
   ]
  },
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   "source": [
    "## Maiking in Nim\n",
    "\n",
    "- [OS](http://sksat.hatenablog.com/entry/2017/12/12/213528)\n",
    "- [Kernel](https://qiita.com/2vg/items/cbccb0ef4288830ad82c)\n",
    "- [Kenerl 2](https://github.com/dom96/nimkernel)\n",
    "- [interpreter](https://github.com/mrsekut/WritingAnInterpreterInNim) ← me"
   ]
  },
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   "source": [
    "## Book\n",
    "\n",
    "- [Nim in Action](https://www.manning.com/books/nim-in-action)\n",
    "- ![](https://images.manning.com/720/960/resize/book/7/1eee7a5-6cc1-4965-ba03-7486c3a30ef9/Picheta-Nim-HI.png)"
   ]
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   "source": [
    "## VSCode Extension\n",
    "\n",
    "- [vscode-nim](https://marketplace.visualstudio.com/items?itemName=kosz78.nim)"
   ]
  },
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   "source": [
    "# Reference\n",
    "\n",
    "- [Features | Nim](https://nim-lang.org/features.html)\n",
    "- [Nim - Wikipedia](https://ja.wikipedia.org/wiki/Nim)\n",
    "- [Nimで他の言語との連携方法まとめ - Qiita](https://qiita.com/snowlt23/items/1696687cca61bfedb1cc)"
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