Returns all unique values in an array.
Create a Set
from the given array to discard duplicated values, then use the spread operator (...
) to convert it back to an array.
代码片段
const uniqueElements = arr => [...new Set(arr)];
使用样例
uniqueElements([1, 2, 2, 3, 4, 4, 5]); // [1, 2, 3, 4, 5]