Most efficient way to create an array of length n filled with unique symbols

Question

I need to create an array of variable length where each element is a unique symbol. Is there a built-in (ES6) or lodash method to easily do this? What I have currently is _.map(range(n), () => Symbol()) which is fairly efficient text and timewise, but I would prefer to replace map with a different function that allows me to replace range(n) with just n .

Answer 1

Array.from({length: n}, () => Symbol())

将是一种选择。

Answer 2

您可以使用时间 ：

let result = _.times(5, () => Symbol())