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Wake up babe, new code golf challenge has just drop
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>ES6 Demonstration</title> | |
<style> | |
.pager { margin: 5px 10px; user-select: none; -webkit-user-select: none; font-family: sans-serif; } | |
.pager .page { display: inline-block; padding: 0px 5px; cursor: pointer; } | |
.pager .page:active { color: red; } | |
.selected { font-weight: bold; color: red; } | |
.paged-content { font: bold 250% sans-serif; padding: 25px 10px; } | |
</style> | |
<script> | |
let all = e => document.querySelectorAll(e), | |
map = (e, fn) => { | |
for(let el of all(e)) | |
fn(el) | |
}, | |
on = (e, name, fn) => e.addEventListener(name, fn) | |
on(document, "DOMContentLoaded", () => { | |
let content = all('#content')[0], | |
box = (name = '') => `</span><span class="page${name}">` | |
map('.pager', el => el.innerHTML = `<span>Page: ${box(' selected')}${ | |
[1,2,3,4,5].join(box()) | |
}</span>`) | |
map('.page', page => on(page, 'click', () => { | |
const index = page.textContent | |
content.textContent = `Page ${index}` | |
map('.page.selected', e => e.classList.remove('selected')) | |
map(`.page:nth-child(${+index + 1})`, e => e.classList.add('selected')) | |
})) | |
content.textContent = 'Page 1' | |
}) | |
</script> | |
</head> | |
<body> | |
<div id="top_pager" class="pager"></div> | |
<div id="content" class="paged-content"></div> | |
<div id="bottom_pager" class="pager"></div> | |
</body> | |
</html> |
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