1 | var baseGetTag = require('./_baseGetTag'),
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2 | isLength = require('./isLength'),
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3 | isObjectLike = require('./isObjectLike');
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4 |
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5 | /** `Object#toString` result references. */
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6 | var argsTag = '[object Arguments]',
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7 | arrayTag = '[object Array]',
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8 | boolTag = '[object Boolean]',
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9 | dateTag = '[object Date]',
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10 | errorTag = '[object Error]',
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11 | funcTag = '[object Function]',
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12 | mapTag = '[object Map]',
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13 | numberTag = '[object Number]',
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14 | objectTag = '[object Object]',
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15 | regexpTag = '[object RegExp]',
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16 | setTag = '[object Set]',
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17 | stringTag = '[object String]',
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18 | weakMapTag = '[object WeakMap]';
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19 |
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20 | var arrayBufferTag = '[object ArrayBuffer]',
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21 | dataViewTag = '[object DataView]',
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22 | float32Tag = '[object Float32Array]',
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23 | float64Tag = '[object Float64Array]',
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24 | int8Tag = '[object Int8Array]',
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25 | int16Tag = '[object Int16Array]',
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26 | int32Tag = '[object Int32Array]',
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27 | uint8Tag = '[object Uint8Array]',
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28 | uint8ClampedTag = '[object Uint8ClampedArray]',
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29 | uint16Tag = '[object Uint16Array]',
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30 | uint32Tag = '[object Uint32Array]';
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31 |
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32 | /** Used to identify `toStringTag` values of typed arrays. */
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33 | var typedArrayTags = {};
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34 | typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
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35 | typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
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36 | typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
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37 | typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
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38 | typedArrayTags[uint32Tag] = true;
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39 | typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
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40 | typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
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41 | typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
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42 | typedArrayTags[errorTag] = typedArrayTags[funcTag] =
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43 | typedArrayTags[mapTag] = typedArrayTags[numberTag] =
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44 | typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
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45 | typedArrayTags[setTag] = typedArrayTags[stringTag] =
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46 | typedArrayTags[weakMapTag] = false;
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47 |
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48 | /**
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49 | * The base implementation of `_.isTypedArray` without Node.js optimizations.
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50 | *
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51 | * @private
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52 | * @param {*} value The value to check.
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53 | * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
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54 | */
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55 | function baseIsTypedArray(value) {
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56 | return isObjectLike(value) &&
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57 | isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
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58 | }
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59 |
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60 | module.exports = baseIsTypedArray;
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