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arilotter/script.js

Last active October 7, 2024 19:41
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Raw
script.js
const minutes = Array.from({length: 60}, (_,i) => i)
const seconds = Array.from({length: 60}, (_,i) => i)
const hours = [0, 1]
const hms = hours.flatMap(h => minutes.flatMap(m => seconds.map(s => [h,m,s])))
const noZeroLeading = hms.map(([h,m,s]) => {
const hh = h == 0 ? '' : `${h}:`
const mm = (h == 0 && m == 0) ? '' : (`${m}`.padStart(h > 0 ? 2 : 1, '0') + ':')
const ss = `${s}`.padStart(m > 0 ? 2 : 1, '0')
return hh+mm+ss
})
console.log(noZeroLeading)
const uniq = noZeroLeading.filter(
s => {
const sp = s.split("");
const isUniq = sp.every((ch, index) => ch == ":" || sp.indexOf(ch) === index);
return isUniq
}
)
console.log(`out of ${noZeroLeading.length} timestamps, ${uniq.length} have every digit unique. That's ${(uniq.length / noZeroLeading.length) * 100}%.`)
Raw
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