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60 lines
2.2 KiB
60 lines
2.2 KiB
var baseGetTag = require('./_baseGetTag'), |
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isLength = require('./isLength'), |
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isObjectLike = require('./isObjectLike'); |
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/** `Object#toString` result references. */ |
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var argsTag = '[object Arguments]', |
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arrayTag = '[object Array]', |
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boolTag = '[object Boolean]', |
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dateTag = '[object Date]', |
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errorTag = '[object Error]', |
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funcTag = '[object Function]', |
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mapTag = '[object Map]', |
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numberTag = '[object Number]', |
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objectTag = '[object Object]', |
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regexpTag = '[object RegExp]', |
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setTag = '[object Set]', |
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stringTag = '[object String]', |
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weakMapTag = '[object WeakMap]'; |
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var arrayBufferTag = '[object ArrayBuffer]', |
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dataViewTag = '[object DataView]', |
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float32Tag = '[object Float32Array]', |
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float64Tag = '[object Float64Array]', |
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int8Tag = '[object Int8Array]', |
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int16Tag = '[object Int16Array]', |
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int32Tag = '[object Int32Array]', |
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uint8Tag = '[object Uint8Array]', |
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uint8ClampedTag = '[object Uint8ClampedArray]', |
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uint16Tag = '[object Uint16Array]', |
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uint32Tag = '[object Uint32Array]'; |
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/** Used to identify `toStringTag` values of typed arrays. */ |
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var typedArrayTags = {}; |
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typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = |
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typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = |
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typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = |
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typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = |
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typedArrayTags[uint32Tag] = true; |
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typedArrayTags[argsTag] = typedArrayTags[arrayTag] = |
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typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = |
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typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = |
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typedArrayTags[errorTag] = typedArrayTags[funcTag] = |
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typedArrayTags[mapTag] = typedArrayTags[numberTag] = |
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typedArrayTags[objectTag] = typedArrayTags[regexpTag] = |
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typedArrayTags[setTag] = typedArrayTags[stringTag] = |
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typedArrayTags[weakMapTag] = false; |
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/** |
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* The base implementation of `_.isTypedArray` without Node.js optimizations. |
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* |
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* @private |
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* @param {*} value The value to check. |
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* @returns {boolean} Returns `true` if `value` is a typed array, else `false`. |
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*/ |
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function baseIsTypedArray(value) { |
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return isObjectLike(value) && |
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isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; |
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} |
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module.exports = baseIsTypedArray;
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