The JavaScript Database, for Node.js, nw.js, electron and the browser
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const uniq = (array, iterator) => {
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if (iterator) return [...(new Map(array.map(x => [iterator(x), x]))).values()]
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else return [...new Set(array)]
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}
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const objectToString = o => Object.prototype.toString.call(o)
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const isObject = arg => typeof arg === 'object' && arg !== null
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const isDate = d => isObject(d) && objectToString(d) === '[object Date]'
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const isRegExp = re => isObject(re) && objectToString(re) === '[object RegExp]'
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module.exports.uniq = uniq
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module.exports.isDate = isDate
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module.exports.isRegExp = isRegExp
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