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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<title>Getting started with open source</title>
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<link rel="stylesheet" href="theme/font-awesome.css">
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/*
github.com style (c) Vasily Polovnyov <[email protected]>
*/
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</style>
</head>
<body>
<div class="progress">
<div class="progress-bar"></div>
</div>
<div class="slide intro" id="slide-1">
<section class="slide-content"><h1 id="getting-started-with-open-source">Getting started with open source</h1>
</section>
</div>
<div class="slide hidden -" id="slide-2">
<section class="slide-content"><h2 id="topics">Topics</h2>
<ul>
<li>Git & Github</li>
<li>Branches, Pull Request</li>
<li>What is NodeJS</li>
<li>NPM packages and package.json</li>
<li>Creating a node project</li>
<li>A NodeJS webserver</li>
<li>Testing</li>
<li>Continuous Integration (CI)</li>
</ul>
</section>
</div>
<div class="slide hidden" id="slide-3">
<section class="slide-content"><h2 id="git">Git</h2>
<blockquote>
<p>A distributed version control system</p>
</blockquote>
<p><img src="img/git-logo.png" alt="Git" style="height: 300px; margin: 0 auto; display: block;"></p>
</section>
</div>
<div class="slide hidden" id="slide-4">
<section class="slide-content"><h2 id="github">GitHub</h2>
<p>A platform for collaborating on source code.</p>
<p><a href="https://octodex.github.com/"><img alt="Codercat" src="img/codercat.jpg" style="height: 400px;"></a> <a href="https://octodex.github.com/"><img alt="Mountietocat" src="img/mountietocat.png" style="height: 400px;"></a></p>
</section>
</div>
<div class="slide hidden" id="slide-5">
<section class="slide-content"><h2 id="branches-pull-request">Branches, Pull Request</h2>
<p><a href="https://git-scm.com/"><img src="img/branches_git.png" alt="Git branches" style="height: 500px; margin: 0 auto; display: block;"></a></p>
</section>
</div>
<div class="slide hidden" id="slide-6">
<section class="slide-content"><h2 id="what-is-nodejs">What is NodeJS</h2>
<blockquote>
<p>A JavaScript runtime to build scalable network applications</p>
</blockquote>
<p><a href="https://nodejs.org/"><img src="img/node-js-logo.png" alt="NodeJS logo" style="height: 350px; margin: 0 auto; display: block;"></a></p>
</section>
</div>
<div class="slide hidden" id="slide-7">
<section class="slide-content"><h2 id="the-__n__ode-__p__ackage-__m__anager-https-npmjs-org-">The <a href="https://npmjs.org"><strong>N</strong>ode <strong>P</strong>ackage <strong>M</strong>anager</a></h2>
<ul>
<li>currently hosts ~ 1m modules</li>
<li>easy to use (<code>npm install <package></code>)</li>
<li>easy to publish (<code>npm publish</code>)</li>
<li>use it with anything (folders, tarballs, git repositories)</li>
</ul>
<h3 id="-commonjs-http-www-commonjs-org-"><a href="http://www.commonjs.org/">CommonJS</a></h3>
<ul>
<li>Attempt for JavaScript API standardization</li>
</ul>
</section>
</div>
<div class="slide hidden -" id="slide-8">
<section class="slide-content"><h2 id="commonjs-modules">CommonJS modules</h2>
<p>Provides global <code>module</code>, <code>exports</code> and <code>require()</code> to define this files API</p>
<pre><code class="lang-js"><span class="hljs-comment">// module1.js</span>
exports.hello = <span class="hljs-string">'World'</span>;
<span class="hljs-comment">// or</span>
<span class="hljs-built_in">module</span>.exports = {
hello: <span class="hljs-string">'World'</span>
}</code></pre>
<p>Using the module</p>
<pre><code class="lang-js"><span class="hljs-comment">// main.js</span>
<span class="hljs-keyword">var</span> mod1 = <span class="hljs-built_in">require</span>(<span class="hljs-string">'./module1'</span>);
<span class="hljs-built_in">console</span>.log(mod1.hello); <span class="hljs-comment">// -> World</span></code></pre>
</section>
</div>
<div class="slide hidden" id="slide-9">
<section class="slide-content"><h2 id="package-json">package.json</h2>
<p>CommonJS specification for describing JavaScript packages</p>
<pre><code class="lang-js">{
<span class="hljs-string">"name"</span>: <span class="hljs-string">"nodeschool"</span>,
<span class="hljs-string">"version"</span>: <span class="hljs-string">"0.1.0"</span>,
<span class="hljs-string">"author"</span>: <span class="hljs-string">"Nodeschool <[email protected]>"</span>,
<span class="hljs-string">"description"</span>: <span class="hljs-string">"NodeJS FTW!"</span>,
<span class="hljs-string">"scripts"</span>: {
<span class="hljs-string">"test"</span>: <span class="hljs-string">"mocha test"</span>,
<span class="hljs-string">"start"</span>: <span class="hljs-string">"node lib/start.js"</span>
},
<span class="hljs-string">"main"</span>: <span class="hljs-string">"./lib/main.js"</span>,
<span class="hljs-string">"repository"</span>: {
<span class="hljs-string">"type"</span>: <span class="hljs-string">"git"</span>, <span class="hljs-string">"url"</span>: <span class="hljs-string">"https://github.com/yycjs/node-up"</span>
},
<span class="hljs-string">"dependencies"</span>: { <span class="hljs-string">"somePackage"</span>: <span class="hljs-string">"^1.0.0"</span> },
<span class="hljs-string">"devDependencies"</span>: { <span class="hljs-string">"some-dev-only-package"</span>: <span class="hljs-string">"^0.2.0"</span> },
<span class="hljs-string">"license"</span>: <span class="hljs-string">"MIT"</span>
}</code></pre>
</section>
</div>
<div class="slide hidden" id="slide-10">
<section class="slide-content"><h2 id="a-nodejs-webserver">A NodeJS webserver</h2>
<pre><code class="lang-javascript"><span class="hljs-keyword">const</span> http = <span class="hljs-built_in">require</span>(<span class="hljs-string">'http'</span>);
<span class="hljs-keyword">const</span> hostname = <span class="hljs-string">'127.0.0.1'</span>;
<span class="hljs-keyword">const</span> port = <span class="hljs-number">3000</span>;
<span class="hljs-keyword">const</span> server = http.createServer((req, res) => {
res.statusCode = <span class="hljs-number">200</span>;
res.setHeader(<span class="hljs-string">'Content-Type'</span>, <span class="hljs-string">'text/plain'</span>);
res.end(<span class="hljs-string">'Hello World\n'</span>);
});
server.listen(port, hostname, () => {
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">`Server running at http://<span class="hljs-subst">${hostname}</span>:<span class="hljs-subst">${port}</span>/`</span>);
});</code></pre>
</section>
</div>
<div class="slide hidden" id="slide-11">
<section class="slide-content"><h2 id="testing">Testing</h2>
<blockquote>
<p>Split functionality into contained units. Ideally each function should perform one <strong>unit</strong> of work.</p>
</blockquote>
<ul>
<li>Testing frameworks: <a href="https://mochajs.org/">Mocha</a>, <a href="https://jestjs.io/">Jest</a>, <a href="https://jasmine.github.io/">Jasmine</a>, <a href="https://github.com/avajs/ava">Ava</a></li>
<li>Code quality tools<ul>
<li><a href="https://eslint.org/">ESLint</a></li>
<li><a href="https://github.com/istanbuljs">Istanbul</a> (code coverage)</li>
<li><a href="https://codeclimate.com/">Codeclimate</a></li>
</ul>
</li>
</ul>
</section>
</div>
<div class="slide hidden" id="slide-12">
<section class="slide-content"><h2 id="continuous-integration-ci-">Continuous Integration (CI)</h2>
<ul>
<li>Use source control management system (SCM) for builds</li>
<li>Run reports, tests, deploy or other tools on each SCM change</li>
<li>Popular open source CI servers:<ul>
<li><a href="http://jenkins-ci.org/">Jenkins</a>: Probably most popular CI server, formerly Hudson</li>
<li><a href="http://cruisecontrol.sourceforge.net/">CruiseControl</a>: CI framework initially by Thoughtworks</li>
</ul>
</li>
<li>Hosted CI services<ul>
<li><a href="http://travis-ci.org">TravisCI</a>: Distributed build platform for the open source community</li>
<li><a href="https://www.codeship.io/">Codeship</a>: Build and deploy service</li>
<li><a href="https://circleci.com/">Circle CI</a></li>
</ul>
</li>
</ul>
</section>
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