| 35 | * @param args |
| 36 | */ |
| 37 | export function useArrayDifference<T>(...args: any[]): ComputedRef<T[]> { |
| 38 | const list: MaybeRefOrGetter<T[]> = args[0] |
| 39 | const values: MaybeRefOrGetter<T[]> = args[1] |
| 40 | |
| 41 | let compareFn = args[2] ?? defaultComparator |
| 42 | const { |
| 43 | symmetric = false, |
| 44 | } = args[3] ?? {} |
| 45 | |
| 46 | if (typeof compareFn === 'string') { |
| 47 | const key = compareFn as keyof T |
| 48 | compareFn = (value: T, othVal: T) => value[key] === othVal[key] |
| 49 | } |
| 50 | |
| 51 | const diff1 = computed(() => toValue(list).filter(x => toValue(values).findIndex(y => compareFn(x, y)) === -1)) |
| 52 | |
| 53 | if (symmetric) { |
| 54 | const diff2 = computed(() => toValue(values).filter(x => toValue(list).findIndex(y => compareFn(x, y)) === -1)) |
| 55 | return computed(() => symmetric ? [...toValue(diff1), ...toValue(diff2)] : toValue(diff1)) |
| 56 | } |
| 57 | else { |
| 58 | return diff1 |
| 59 | } |
| 60 | } |