| 1 | var forEach = require('./each')
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| 2 |
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| 3 | module.exports = function filter (each, fn, _isArray) {
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| 4 | var isArray = typeof _isArray !== 'undefined' ? _isArray : Array.isArray(each)
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| 5 | var result
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| 6 |
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| 7 | if (typeof each !== 'function') each = forEach.bind(this, each)
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| 8 |
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| 9 | if (isArray) {
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| 10 | result = []
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| 11 | each(function (val, key) {
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| 12 | if (fn.apply(this, arguments)) result.push(val)
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| 13 | })
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| 14 | } else {
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| 15 | result = {}
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| 16 | each(function (val, key) {
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| 17 | if (fn.apply(this, arguments)) result[key] = val
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| 18 | })
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| 19 | }
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| 20 |
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| 21 | return result
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| 22 | }
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