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Created January 7, 2019 06:40
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Simple JavaScript shortcut
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js-shortcut.md

Eliminating all duplicates in array with reduce() reduce take 4 params previousValue, currentValue, index, array

array.reduce((acc, el, i, arr) => {
    if (arr.indexOf(el) !== i && acc.indexOf(el) < 0) acc.push(el); return acc;
}, []);
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