12 lines
186 B
JavaScript
12 lines
186 B
JavaScript
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function rng(n) {
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return n ? rng(n - 1).concat(n) : [];
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}
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console.log(
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rng(10).reduce(
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function (a, x) {
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return a + x.toString() + (x % 5 ? ', ' : '\n');
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}, ''
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)
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);
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