| 1 | export function range(start, end){
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| 2 | if (arguments.length === 1) return _end => range(start, _end)
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| 3 |
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| 4 | if (Number.isNaN(Number(start)) || Number.isNaN(Number(end))){
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| 5 | throw new TypeError('Both arguments to range must be numbers')
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| 6 | }
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| 7 |
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| 8 | if (end < start) return []
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| 9 |
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| 10 | const len = end - start
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| 11 | const willReturn = Array(len)
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| 12 |
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| 13 | for (let i = 0; i < len; i++){
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| 14 | willReturn[ i ] = start + i
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| 15 | }
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| 16 |
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| 17 | return willReturn
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| 18 | }
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