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22 lines
506 B
22 lines
506 B
exports = function(arr, start, end) { |
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var len = arr.length; |
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if (start == null) { |
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start = 0; |
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} else if (start < 0) { |
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start = Math.max(len + start, 0); |
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} else { |
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start = Math.min(start, len); |
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} |
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if (end == null) { |
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end = len; |
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} else if (end < 0) { |
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end = Math.max(len + end, 0); |
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} else { |
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end = Math.min(end, len); |
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} |
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var ret = []; |
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while (start < end) ret.push(arr[start++]); |
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return ret; |
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}; |
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|
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module.exports = exports;
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