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Get the union of arrays by means of the Set type.
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| /** | |
| * Get the union of arrays with unique values by means of the Set type. | |
| * | |
| * @param {Array} | |
| * @return {Array} | |
| */ | |
| function union () { | |
| return [...new Set(Array.prototype.reduce.call(arguments, | |
| (memo, array) => { | |
| memo.push(...array) | |
| return memo | |
| }, []))] | |
| } | |
| console.log(union([1, 2, 3], [2, 3, 4])) // => [1, 2, 3, 4] |
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