ran npm run tdd
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@ -1,8 +1,9 @@
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module.exports = join = (arr, separator = ',', end = separator) =>
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const join = (arr, separator = ',', end = separator) =>
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arr.reduce(
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(acc, val, i) =>
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i == arr.length - 2
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? acc + val + end
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: i == arr.length - 1 ? acc + val : acc + val + separator,
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''
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);
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);
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module.exports = join
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