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brianfiszman/groupByRepetitions.js

Last active September 5, 2019 03:36
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Group by repetitions
Raw
groupByRepetitions.js
const arr = [true, 'tset', 'test', 'test', 'tset', true, 1, 3, 1]
const group = arr.reduce(
(a, b) => ({
...a,
[b]: (a[b] || 0) + 1
}), {}
)
console.log(group)
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