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add js basics demos: console, arrays, objects, loops

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Michael Czechowski
2026-04-20 13:25:09 +02:00
parent 7626852ac1
commit b6334035fc
13 changed files with 277 additions and 0 deletions
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39
slides/223015c/assets/demos/js-arrays.html Normal file
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<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<title>Arrays</title>
<style>
body { margin: 0; padding: 14px 16px; font-family: ui-monospace, monospace; background: #fff; font-size: 0.95rem; }
.row { padding: 4px 0; border-bottom: 1px solid #f3f4f6; display: flex; gap: 8px; }
.prompt { color: #9ca3af; }
.num { color: #1e40af; }
.str { color: #15803d; }
.out { color: #6b7280; font-style: italic; }
.arr { display: inline-flex; gap: 2px; }
.cell {
border: 1px solid #d1d5db;
padding: 2px 8px;
border-radius: 3px;
background: #f9fafb;
}
.idx { font-size: 0.65rem; color: #9ca3af; text-align: center; }
</style>
</head>
<body>
<div class="row"><span class="prompt">&gt;</span><span>const f = [<span class="str">"🍎"</span>, <span class="str">"🍌"</span>, <span class="str">"🍒"</span>];</span></div>
<div style="margin: 8px 0 10px;">
<div class="arr">
<div><div class="cell">🍎</div><div class="idx">0</div></div>
<div><div class="cell">🍌</div><div class="idx">1</div></div>
<div><div class="cell">🍒</div><div class="idx">2</div></div>
</div>
</div>
<div class="row"><span class="prompt">&gt;</span><span>f[<span class="num">0</span>];</span></div>
<div class="row"><span class="prompt">←</span><span class="out"><span class="str">"🍎"</span></span></div>
<div class="row"><span class="prompt">&gt;</span><span>f.length;</span></div>
<div class="row"><span class="prompt">←</span><span class="out"><span class="num">3</span></span></div>
<div class="row"><span class="prompt">&gt;</span><span>f.push(<span class="str">"🍇"</span>);</span></div>
<div class="row"><span class="prompt">←</span><span class="out"><span class="num">4</span></span></div>
</body>
</html>