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20 lines
552 B
20 lines
552 B
10 years ago
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'use strict';
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var value = require('../../object/valid-value')
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, contains = require('./contains')
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, byLength = require('./_compare-by-length')
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, filter = Array.prototype.filter, push = Array.prototype.push
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, slice = Array.prototype.slice;
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module.exports = function (/*…list*/) {
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var lists;
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if (!arguments.length) slice.call(this);
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push.apply(lists = [this], arguments);
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lists.forEach(value);
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lists.sort(byLength);
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return lists.reduce(function (a, b) {
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return filter.call(a, function (x) { return contains.call(b, x); });
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});
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};
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