数组去重

const arrayRemoveRepeat = require('zhf.array-remove-repeat');
console.log(arrayRemoveRepeat([1, 1, 2, 1, 3, 3, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 'a', 'a'])); // [1, 2, 3, 4, 5, 6, 7, 8, 'a']