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jgimbel/unique.js

Created June 27, 2017 18:18
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unique.js
function unique(arr, func) {
const uniques = arr.reduce((o, k) => func(k) in o ? o : Object.assign(o, {[func(k)]: k}), {})
return Object.keys(uniques).map(k => uniques[k])
}
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