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defined example fix #78

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defined example fix #78

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22 changes: 10 additions & 12 deletions defined-pseudo-class/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -3,35 +3,33 @@
<head>
<meta charset="utf-8">
<title>:defined demo</title>
<script src="main.js" defer></script>
<script src="main.js"></script>
<style>
p {
background: yellow;
}

simple-custom {
background: cyan;
}

:defined {
font-style: italic;
}

simple-custom:not(:defined) {
display: none;
simple-custom {
text-transform: uppercase;
background: cyan;
}

simple-custom:defined {
display: block;
simple-custom:not(:defined) {
display: none;
}
</style>
</head>
<body>
<h1><code>:defined</code> demo</h1>

<simple-custom text="Custom element example text"></simple-custom>
<p>The <code>&lt;simple-custom&gt;</code> element type is <simple-custom>NOT</simple-custom> undefined.</p>

<p>Standard paragraph example text</p>
<p>Click the button below to make <code>&lt;simple-custom&gt;</code> a custom element.</p>

<button id="button1" onclick="defineSimpleCustom()">Define <code>&lt;simple-custom&gt;</code></button>
</body>
</html>
</html>
21 changes: 9 additions & 12 deletions defined-pseudo-class/main.js
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Original file line number Diff line number Diff line change
@@ -1,13 +1,10 @@
customElements.define('simple-custom',
class extends HTMLElement {
constructor() {
super();

const divElem = document.createElement('div');
divElem.textContent = this.getAttribute('text');

const shadowRoot = this.attachShadow({mode: 'open'});
shadowRoot.appendChild(divElem);
function defineSimpleCustom() {
customElements.define("simple-custom",
class extends HTMLElement {
constructor() {
super();
}
}
}
);
);
document.getElementById("button1").remove();
}
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