js/page/skooma.html

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<link rel="stylesheet" href="style.css">
<script type="module" src="codeblock.js"></script>
2022-01-01 12:05:43 +00:00
<h1>Skooma.js</h1>
<code-block>import {html} from 'skooma.js'</code-block>
2022-01-01 12:05:43 +00:00
<section>
<h2>Introduction & Scope</h2>
<p>
Skooma.js is a library for generating DOM nodes within JavaScript.
</p>
<h3>What are the benefits of Skooma?</h3>
<p>
Skooma is only a small ES6 module that uses meta-programming to
turn JavaScript into a <span title="Domain-Specific Language">DSL</span>
that generates HTML and XML subtrees.
<br>
This means you're writing plain JavaScript code that needs no additional
transpilation steps and runs directly in the browser.
</p>
</section>
<section>
<h2>Showcase</h2>
<p>Here's a few examples of how things are done in Skooma.js and how it compares to vanilla JavaScript.</p>
<div class="columns">
<h3>Skooma.js</h3>
<h3>Vanilla JavaScript</h3>
<p>Generating a single empty HTML element. The <code>html</code> namespace creates generator functions dynamically.</p>
<p>Using the browser API, this is a bit more verbose, but still looks similar.</p>
<code-block>
return html.h1()
</code-block>
<code-block>
return document.createElement("h1")
</code-block>
<p>String arguments to the generator function will be inserted as <strong>text nodes</strong>.</p>
<p>Without Skooma.js this would already require using a variable since <code>createElement</code> cannot insert text content into a new node.</p>
<code-block>
return html.h1("Hello, World!")
</code-block>
<code-block>
let h1 = document.createElement("h1")
h1.innerText = "Hello, World!"
return h1
</code-block>
<p>DOM Nodes can also be passed into the generator function to add them as <strong>child-elements.</strong></p>
<p>This would normally require two separate variables, one for each element.</p>
<code-block>
return html.div(html.b("Hello!"))
</code-block>
<code-block>
let div = document.createElement("div")
let b = document.createElement("b")
b.innerText = "Hello!"
div.append(b)
return div
</code-block>
<p>When passing an object, its key/value pairs will be added as <strong>attributes</strong> to the new element.</p>
<p>Once again, in plain JS this requires a variable.</p>
<code-block>
return html.div({attribute: "value"})
</code-block>
<code-block>
let div = document.createElement("div")
div.setAttribute("attribute", "value")
return div
</code-block>
<p>When an object value is a function, it will instead be added as an <strong>event handler</strong>. The corresponding key will be used as the event name.</p>
<p>You guessed it: variable.</p>
<code-block>
return html.button("Click Me!", {
click: event =&gt; console.log(event)
})
</code-block>
<code-block>
let button document.createElement("button")
button.innerText = "Click Me!"
button.addEventListener(
"click", event =&gt; console.log(event)
)
return button
</code-block>
<p>Adding a <strong>shadow-root</strong> to the new element can be done witht he <code>shadowRoot</code> property.</p>
<p></p>
<code-block>
return html.div({
shadowRoot: html.p("Shadow-DOM text content")
}, "Light-DOM text content")
</code-block>
<code-block>
let div = document.createElement("div")
let p = document.createElement("p")
p.innerText = "Shadow-DOM text content"
div.attachShadow({mode: "open"}).append(p)
div.innerText = "Light-DOM text content"
return div
</code-block>
</div>
</section>