codebraid/examples/javascript.html at master · gpoore/codebraid · GitHub

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<!DOCTYPE html>
<htmlxmlns="http://www.w3.org/1999/xhtml" langxml:lang>
<head>
<metacharset="utf-8" />
<metaname="generator" content="pandoc" />
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<title>Codebraid with JavaScript</title>
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</head>
<body>
<headerid="title-block-header">
<h1class="title">Codebraid with JavaScript</h1>
</header>
<h2id="inline-code">Inline code</h2>
<h3id="run">Run</h3>
<p>Inline code with <code>.cb-run</code> gives raw stdout. While the
language can be specified with <code>.javascript</code>,
<code>.js</code> works as well.</p>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>`console.log(1 + 2);`{.js .cb-run}</code></pre>
</div>
<divclass="exampleOutput">
<p>3</p>
</div>
</div>
<h3id="expression-and-inline-notebook">Expression and inline
notebook</h3>
<p>Inline code with <code>.cb-expr</code> evaluates an expression and
then inserts the raw output into the document, where it is interpreted
as Markdown. Inline code with <code>.cb-nb</code> (<code>nb</code> is
short for <code>notebook</code>) is similar, except output is shown
verbatim.</p>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>`` `\$2^8 = ${2**8}\$` ``{.js .cb-expr}</code></pre>
</div>
<divclass="exampleOutput">
<p><spanclass="math inline">2<sup>8</sup> = 256</span></p>
</div>
</div>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>`4*16`{.js .cb-nb}</code></pre>
</div>
<divclass="exampleOutput">
<p><codeclass="expr">64</code></p>
</div>
</div>
<h3id="stderr">Stderr</h3>
<p>In the event of an error, inline code automatically shows stderr by
default. This code is executed in its own session,
<code>inline_error</code>, so that it does not impact other
examples.</p>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>`console.logs(1 + 2);`{.js .cb-run session=inline_error}</code></pre>
</div>
<divclass="exampleOutput">
<p><codeclass="stderr error">&lt;string&gt;:1 console.logs(1 + 2); ^ TypeError: console.logs is not a function at Object.&lt;anonymous&gt; (&lt;string&gt;:1:9) at Module._compile (node:internal/modules/cjs/loader:1254:14) at Module._extensions..js (node:internal/modules/cjs/loader:1308:10) at Module.load (node:internal/modules/cjs/loader:1117:32) at Module._load (node:internal/modules/cjs/loader:958:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) at node:internal/main/run_main_module:23:47 Node.js v18.15.0</code></p>
</div>
</div>
<h2id="block-code">Block code</h2>
<h3id="run-1">Run</h3>
<p>Code blocks with <code>.cb-run</code> give raw stdout. There is
continuity between code blocks so long as they are in the same session;
variables persist.</p>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>```{.js .cb-run}
message = &quot;Hello from *JavaScript!*&quot;;
```</code></pre>
</div>
</div>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>```{.js .cb-run}
console.log(message);
```</code></pre>
</div>
<divclass="exampleOutput">
<p>Hello from <em>JavaScript!</em></p>
</div>
</div>
<h3id="notebook">Notebook</h3>
<p>Code blocks with <code>.cb-nb</code> show the code and also the
verbatim stdout.</p>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>```{.js .cb-nb session=notebook}
function pows_of_two(start, end) {
 n = 2;
 x = start;
 while (x &lt; end) {
 process.stdout.write(String(2**x) + &quot;, &quot;);
 x += 1;
 }
 console.log(2**end);
}
pows_of_two(1, 9);
pows_of_two(1, 15);
```</code></pre>
</div>
<divclass="exampleOutput">
<divclass="sourceCode" id="cb8" data-startFrom="1"><preclass="sourceCode numberSource js numberLines"><codeclass="sourceCode javascript"><spanid="cb8-1"><ahref="#cb8-1"></a><spanclass="kw">function</span><spanclass="fu">pows_of_two</span>(start<spanclass="op">,</span> end) {</span>
<spanid="cb8-2"><ahref="#cb8-2"></a> n <spanclass="op">=</span><spanclass="dv">2</span><spanclass="op">;</span></span>
<spanid="cb8-3"><ahref="#cb8-3"></a> x <spanclass="op">=</span> start<spanclass="op">;</span></span>
<spanid="cb8-4"><ahref="#cb8-4"></a><spanclass="cf">while</span> (x <spanclass="op">&lt;</span> end) {</span>
<spanid="cb8-5"><ahref="#cb8-5"></a><spanclass="bu">process</span><spanclass="op">.</span><spanclass="at">stdout</span><spanclass="op">.</span><spanclass="fu">write</span>(<spanclass="bu">String</span>(<spanclass="dv">2</span><spanclass="op">**</span>x) <spanclass="op">+</span><spanclass="st">&quot;, &quot;</span>)<spanclass="op">;</span></span>
<spanid="cb8-6"><ahref="#cb8-6"></a> x <spanclass="op">+=</span><spanclass="dv">1</span><spanclass="op">;</span></span>
<spanid="cb8-7"><ahref="#cb8-7"></a> }</span>
<spanid="cb8-8"><ahref="#cb8-8"></a><spanclass="bu">console</span><spanclass="op">.</span><spanclass="fu">log</span>(<spanclass="dv">2</span><spanclass="op">**</span>end)<spanclass="op">;</span></span>
<spanid="cb8-9"><ahref="#cb8-9"></a>}</span>
<spanid="cb8-10"><ahref="#cb8-10"></a><spanclass="fu">pows_of_two</span>(<spanclass="dv">1</span><spanclass="op">,</span><spanclass="dv">9</span>)<spanclass="op">;</span></span>
<spanid="cb8-11"><ahref="#cb8-11"></a><spanclass="fu">pows_of_two</span>(<spanclass="dv">1</span><spanclass="op">,</span><spanclass="dv">15</span>)<spanclass="op">;</span></span></code></pre></div>
<preclass="stdout"><code>2, 4, 8, 16, 32, 64, 128, 256, 512
2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768</code></pre>
</div>
</div>
<h3id="stderr-1">Stderr</h3>
<p>Code blocks show stderr automatically by default.</p>
<divclass="example">
<divclass="exampleMarkup">
<pre><code>```{.js .cb-nb session=block_error}
x = 1 + ;
```</code></pre>
</div>
<divclass="exampleOutput">
<divclass="sourceCode" id="cb11" data-startFrom="1"><preclass="sourceCode numberSource js numberLines"><codeclass="sourceCode javascript"><spanid="cb11-1"><ahref="#cb11-1"></a>x <spanclass="op">=</span><spanclass="dv">1</span><spanclass="op">+</span><spanclass="op">;</span></span></code></pre></div>
<preclass="stderr error"><code>source.js:1
x = 1 + ;
 ^

SyntaxError: Unexpected token &#39;;&#39;
 at internalCompileFunction (node:internal/vm:73:18)
 at wrapSafe (node:internal/modules/cjs/loader:1176:20)
 at Module._compile (node:internal/modules/cjs/loader:1218:27)
 at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
 at Module.load (node:internal/modules/cjs/loader:1117:32)
 at Module._load (node:internal/modules/cjs/loader:958:12)
 at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
 at node:internal/main/run_main_module:23:47

Node.js v18.15.0</code></pre>
</div>
</div>
</body>
</html>