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10 lines
309 B
10 lines
309 B
var getKeys = require('./_object-keys'); |
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var toIObject = require('./_to-iobject'); |
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module.exports = function (object, el) { |
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var O = toIObject(object); |
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var keys = getKeys(O); |
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var length = keys.length; |
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var index = 0; |
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var key; |
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while (length > index) if (O[key = keys[index++]] === el) return key; |
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};
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