對比兩個數組包含內容是否相等
const result = val.length === list_v.length && val.every(a => list_v.some(b => a === b))
&& list_v.every(_b => val.some(_a => _a === _b));
// result: true
const result = val.length === list_v.length && val.every(a => list_v.some(b => a === b))
&& list_v.every(_b => val.some(_a => _a === _b));
// result: true
刪除數組arr中isDefault屬性爲false的元素 arr = arr.filter(({ isDefault }) => isDefault !== false); 原數組arr: [ { "
刪除數組arr中isDefault屬性爲false的元素 arr = arr.filter(({ isDefault }) => isDefault !== false); 原數組arr: [ { "