foop
Version:
interfaces that describe their intentions.
28 lines (26 loc) • 1.7 kB
JavaScript
var toS = require('./toS')
/**
* Checks if `value` is classified as a `Set` object.
*
* @since 4.3.0
* @category Lang
* @param {*} x The value to check.
* @return {boolean} Returns `true` if `value` is a set, else `false`.
*
* @TODO map[Symbol.species] === Set
*
* @example
*
* isSet(new Set)
* //=> true
*
* isSet(new WeakSet)
* //=> false
*
*/
module.exports = function isSet(x) {
// return x instanceof Set || toS(x) === '[object Set]'
return toS(x) === '[object Set]'
}
// x instanceof Set ||
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