數組去重

轉載地址  https://www.jb51.net/article/118657.htmjavascript 好記性不如爛筆頭。敲一敲 賊雞兒方便的ES6   Setjava let arr = [1,2,3,3]; let newA = Array.from(new Set(arr)); console.log(newA);//[1, 2, 3] 雙層循環，外層循環元素，內層循環時比較值數組

>>阅读原文<<