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<li><a href="#adding-javascript-or-stylesheets-to-all-pages">Adding JavaScript or Stylesheets to All Pages</a></li>
<li><a href="#custom-shortcodes-with-dependencies">Custom Shortcodes with Dependencies</a></li>
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<h1 id="extending-scripts">Extending Scripts</h1>
<p>A common question is how to add extra CSS styles or JavaScript to your site. This depends on what you need.</p>
<h2 id="adding-javascript-or-stylesheets-to-all-pages">Adding JavaScript or Stylesheets to All Pages</h2>
<p>To add JavaScript files or CSS stylesheets to every page, you can include them in <code>layouts/partials/custom-header.html</code> or <code>layouts/partials/custom-footer.html</code>.</p>
<p>However, this can make your site larger than necessary if these files are only needed on a few pages. The next section explains how to add dependencies only when needed.</p>
<h2 id="custom-shortcodes-with-dependencies">Custom Shortcodes with Dependencies</h2>
<p>Some shortcodes need extra JavaScript and CSS files. The theme only loads these when the shortcode is used. You can use this for your own shortcodes too.</p>
<p>For example, to create a shortcode called <code>myshortcode</code> that needs the <code>jquery</code> library:</p>
<ol>
<li>
<p>Create the shortcode file <code>layouts/shortcodes/myshortcode.html</code> and add the folloging line somewhere:</p>
<div class="tab-panel" data-tab-group="a8c353e12cb84768c212f7d9758c9643">
<div class="tab-nav">
<div class="tab-nav-title">&#8203;</div>
<button
data-tab-item="layoutsshortcodesmyshortcodehtml"
class="tab-nav-button tab-panel-style cstyle initial active" tabindex="-1"
onclick="switchTab('a8c353e12cb84768c212f7d9758c9643','layoutsshortcodesmyshortcodehtml')"
>
<span class="tab-nav-text">layouts/shortcodes/myshortcode.html</span>
</button>
</div>
<div class="tab-content-container">
<div
data-tab-item="layoutsshortcodesmyshortcodehtml"
class="tab-content tab-panel-style cstyle initial active">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="o">...</span>
</span></span><span class="line"><span class="cl"><span class="p">{{</span><span class="o">-</span> <span class="p">.</span><span class="nx">Page</span><span class="p">.</span><span class="nx">Store</span><span class="p">.</span><span class="nx">Set</span> <span class="s">&#34;hasMyShortcode&#34;</span> <span class="kc">true</span> <span class="p">}}</span>
</span></span><span class="line"><span class="cl"><span class="o">...</span></span></span></code></pre></div>
</div>
</div>
</div>
</div></li>
<li>
<p><span class="badge cstyle cyan badge-with-title"><span class="badge-title"><i class="fa-fw fas fa-gears"></i></span><span class="badge-content">Option</span></span> Add this to your <code>hugo.toml</code>:</p>
<div class="tab-panel" data-tab-group="config-code">
<div class="tab-nav">
<div class="tab-nav-title">hugo.</div>
<button
data-tab-item="toml"
class="tab-nav-button tab-panel-style cstyle initial active" tabindex="-1"
onclick="switchTab('config-code','toml')"
>
<span class="tab-nav-text">toml</span>
</button>
<button
data-tab-item="yaml"
class="tab-nav-button tab-panel-style cstyle initial"
onclick="switchTab('config-code','yaml')"
>
<span class="tab-nav-text">yaml</span>
</button>
<button
data-tab-item="json"
class="tab-nav-button tab-panel-style cstyle initial"
onclick="switchTab('config-code','json')"
>
<span class="tab-nav-text">json</span>
</button>
</div>
<div class="tab-content-container">
<div
data-tab-item="toml"
class="tab-content tab-panel-style cstyle initial active">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="p">[</span><span class="nx">params</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="p">[</span><span class="nx">params</span><span class="p">.</span><span class="nx">relearn</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="p">[</span><span class="nx">params</span><span class="p">.</span><span class="nx">relearn</span><span class="p">.</span><span class="nx">dependencies</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="p">[</span><span class="nx">params</span><span class="p">.</span><span class="nx">relearn</span><span class="p">.</span><span class="nx">dependencies</span><span class="p">.</span><span class="nx">myshortcode</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="nx">name</span> <span class="p">=</span> <span class="s1">&#39;MyShortcode&#39;</span></span></span></code></pre></div>
</div>
</div>
<div
data-tab-item="yaml"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="nt">params</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">relearn</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">dependencies</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">myshortcode</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">MyShortcode</span></span></span></code></pre></div>
</div>
</div>
<div
data-tab-item="json"
class="tab-content tab-panel-style cstyle initial">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-json" data-lang="json"><span class="line"><span class="cl"><span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;params&#34;</span><span class="p">:</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;relearn&#34;</span><span class="p">:</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;dependencies&#34;</span><span class="p">:</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;myshortcode&#34;</span><span class="p">:</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&#34;name&#34;</span><span class="p">:</span> <span class="s2">&#34;MyShortcode&#34;</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span></span></span></code></pre></div>
</div>
</div>
</div>
</div>
</li>
<li>
<p>Create loader file <code>layouts/partials/dependencies/myshortcode.html</code>:</p>
<div class="tab-panel" data-tab-group="f2f8e23f8c0fd47a30a569ccb4906369">
<div class="tab-nav">
<div class="tab-nav-title">&#8203;</div>
<button
data-tab-item="layoutspartialsdependenciesmyshortcodehtml"
class="tab-nav-button tab-panel-style cstyle initial active" tabindex="-1"
onclick="switchTab('f2f8e23f8c0fd47a30a569ccb4906369','layoutspartialsdependenciesmyshortcodehtml')"
>
<span class="tab-nav-text">layouts/partials/dependencies/myshortcode.html</span>
</button>
</div>
<div class="tab-content-container">
<div
data-tab-item="layoutspartialsdependenciesmyshortcodehtml"
class="tab-content tab-panel-style cstyle initial active">
<div class="tab-content-text">
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="p">{{</span><span class="o">-</span> <span class="k">if</span> <span class="nx">eq</span> <span class="p">.</span><span class="nx">location</span> <span class="s">&#34;footer&#34;</span> <span class="p">}}</span>
</span></span><span class="line"><span class="cl"> <span class="p">&lt;</span><span class="nx">script</span> <span class="nx">src</span><span class="p">=</span><span class="s">&#34;https://www.unpkg.com/jquery/dist/jquery.js&#34;</span><span class="p">&gt;&lt;</span><span class="o">/</span><span class="nx">script</span><span class="p">&gt;</span>
</span></span><span class="line"><span class="cl"><span class="p">{{</span><span class="o">-</span> <span class="nx">end</span> <span class="p">}}</span></span></span></code></pre></div>
</div>
</div>
</div>
</div></li>
</ol>
<p>Important notes:</p>
<ul>
<li>Character casing is relevant!</li>
<li>The <code>name</code> in <code>hugo.toml</code> must match the <code>Store</code> key used in the shortcode file, prefixed with a <code>has</code>.</li>
<li>The key of <code>relearn.dependencies</code> must match the loader file name.</li>
</ul>
<p>See the <code>math</code>, <code>mermaid</code>, and <code>openapi</code> shortcodes for examples.</p>
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<i class="fa-fw fas fa-exclamation-circle"></i> Note
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<p>For advanced customization, you can use the dependency loader in your own partials:</p>
<div class="highlight wrap-code"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="p">{{</span><span class="o">-</span> <span class="nx">partial</span> <span class="s">&#34;dependencies.gotmpl&#34;</span> <span class="p">(</span><span class="nx">dict</span> <span class="s">&#34;page&#34;</span> <span class="p">.</span> <span class="s">&#34;location&#34;</span> <span class="s">&#34;mylocation&#34;</span><span class="p">)</span> <span class="p">}}</span></span></span></code></pre></div>
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<p>Give a unique name for the <code>location</code> parameter when you call it, so you can distinguish your loaders behavior depending on the location it was called from.</p>
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