| 1 | ;
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| 2 |
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| 3 | var hasOwn = Object.prototype.hasOwnProperty;
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| 4 |
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| 5 | module.exports = function (xs, f) {
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| 6 | if (xs.map) {
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| 7 | return xs.map(f);
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| 8 | }
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| 9 | var res = [];
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| 10 | for (var i = 0; i < xs.length; i++) {
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| 11 | var x = xs[i];
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| 12 | if (hasOwn.call(xs, i)) {
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| 13 | res.push(f(x, i, xs));
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| 14 | }
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| 15 | }
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| 16 | return res;
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| 17 | };
|