1 | var baseTimes = require('./_baseTimes'),
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2 | isArguments = require('./isArguments'),
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3 | isArray = require('./isArray'),
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4 | isBuffer = require('./isBuffer'),
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5 | isIndex = require('./_isIndex'),
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6 | isTypedArray = require('./isTypedArray');
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7 |
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8 |
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9 | var objectProto = Object.prototype;
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10 |
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11 |
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12 | var hasOwnProperty = objectProto.hasOwnProperty;
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13 |
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14 |
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15 |
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16 |
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17 |
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18 |
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19 |
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20 |
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21 |
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22 | function arrayLikeKeys(value, inherited) {
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23 | var isArr = isArray(value),
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24 | isArg = !isArr && isArguments(value),
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25 | isBuff = !isArr && !isArg && isBuffer(value),
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26 | isType = !isArr && !isArg && !isBuff && isTypedArray(value),
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27 | skipIndexes = isArr || isArg || isBuff || isType,
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28 | result = skipIndexes ? baseTimes(value.length, String) : [],
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29 | length = result.length;
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30 |
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31 | for (var key in value) {
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32 | if ((inherited || hasOwnProperty.call(value, key)) &&
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33 | !(skipIndexes && (
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34 |
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35 | key == 'length' ||
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36 |
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37 | (isBuff && (key == 'offset' || key == 'parent')) ||
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38 |
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39 | (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
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40 |
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41 | isIndex(key, length)
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42 | ))) {
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43 | result.push(key);
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44 | }
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45 | }
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46 | return result;
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47 | }
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48 |
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49 | module.exports = arrayLikeKeys;
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