19 lines
519 B
JavaScript
19 lines
519 B
JavaScript
var isArrLike = require('./isArrLike');
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var clone = require('./clone');
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var values = require('./values');
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var random = require('./random');
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var swap = require('./swap');
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exports = function(obj, n) {
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var sample = isArrLike(obj) ? clone(obj) : values(obj);
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var len = sample.length;
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n = Math.max(Math.min(n, len), 0);
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var last = len - 1;
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for (var i = 0; i < n; i++) {
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var rand = random(i, last);
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swap(sample, i, rand);
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}
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return sample.slice(0, n);
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};
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module.exports = exports;
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