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27 lines
639 B
JavaScript
27 lines
639 B
JavaScript
import getTag from './.internal/getTag.js'
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import nodeUtil from './.internal/nodeUtil.js'
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/* Node.js helper references. */
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const nodeIsSet = nodeUtil && nodeUtil.isSet
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/**
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* Checks if `value` is classified as a `Set` object.
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*
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* @since 4.3.0
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is a set, else `false`.
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* @example
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*
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* isSet(new Set)
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* // => true
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*
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* isSet(new WeakSet)
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* // => false
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*/
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const isSet = nodeIsSet
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? (value) => nodeIsSet(value)
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: (value) => typeof value == 'object' && value !== null && getTag(value) == '[object Set]'
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export default isSet
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