├── .gitignore
├── binding.gyp
├── src
    └── hello.cc
├── README.md
├── main.js
├── package.json
└── LICENSE


/.gitignore:
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1 | a.out
2 | build/
3 | node_modules/
4 | .vscode/
5 | 


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/binding.gyp:
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1 | {
2 |   "targets": [
3 |     {
4 |       "target_name": "hello",
5 |       "sources": [ "src/hello.cc" ],
6 |       "include_dirs": ["<!(node -e \"require('nan')\")"]
7 |     }
8 |   ]
9 | }


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/src/hello.cc:
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 1 | #include <iostream>
 2 | #include <nan.h>
 3 | using namespace v8;
 4 | 
 5 | NAN_METHOD(hello) {
 6 |   int count = 0;
 7 |   for (int i = 0; i < 1000000; i++) {
 8 |     count = i;
 9 |   }
10 | 
11 |   std::cout << "hello\n";
12 | }
13 | 
14 | NAN_MODULE_INIT(init) {
15 |   Nan::SetMethod(target, "hello", hello);
16 | }
17 | 
18 | NODE_MODULE(hello, init);


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/README.md:
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 1 | # fast-js
 2 | Example of how to start writing c++ modules for node
 3 | 
 4 | 1. make sure your have node 9.8.0 installed
 5 | 2. `$ npm install`
 6 | 3. run the project with `$ npm start`
 7 | 
 8 | ## What does it do?
 9 | The example here is comparing the speed a which we do the same operations in c++ as also in JavaScript.
10 | 
11 | The operations include the following:
12 | - iterate for a large number count
13 | - changing a value of an number/integer on the program stack
14 | - printing a string of "hello\n" to standard output (stdout)
15 | 


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/main.js:
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 1 | require('nan')
 2 | console.log("finished \"nan\"");
 3 | const { hello } = require('./build/Release/hello.node');
 4 | console.log("finished \"hello\"");
 5 | 
 6 | const cPlusPlusHelloTime = "c++ hello"
 7 | console.time(cPlusPlusHelloTime);
 8 | hello();
 9 | console.timeEnd(cPlusPlusHelloTime);
10 | 
11 | const jsLoopTime = "js loop";
12 | console.time(jsLoopTime);
13 | let count = 0;
14 | for (let i = 0; i < 1000000; i++) {
15 |     count = i;
16 | }
17 | console.log("hello\n");
18 | console.timeEnd(jsLoopTime);
19 | 
20 | console.log("\"hello\" function called");


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/package.json:
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 1 | {
 2 |   "name": "fast-js",
 3 |   "version": "1.0.0",
 4 |   "description": "Example of how to start writing c++ modules for node",
 5 |   "main": "main.js",
 6 |   "scripts": {
 7 |     "start": "node main.js",
 8 |     "rebuild": "node-gyp rebuild"
 9 |   },
10 |   "dependencies": {
11 |     "node-gyp": "^5.0.1",
12 |     "nan": "^2.14.0"
13 |   },
14 |   "engines": {
15 |     "node": "9.8.0"
16 |   },
17 |   "author": "Ricky Powell <rickypmusic@gmail.com>",
18 |   "repository": "https://github.com/rickypowell/fast-js.git",
19 |   "license": "ISC",
20 |   "gypfile": true
21 | }
22 | 


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/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2019 Ricky
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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