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chore: improve the types for $set and $delete #13047

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chore: improve the types for $set and $delete #13047

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11 changes: 9 additions & 2 deletions src/core/observer/index.ts
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Expand Up @@ -218,7 +218,11 @@ export function defineReactive(
* already exist.
*/
export function set<T>(array: T[], key: number, value: T): T
export function set<T>(object: object, key: string | number, value: T): T
export function set<T extends Record<keyof any, any>, K extends keyof T>(
object: T,
key: K,
value: T[K]
): T
export function set(
target: any[] | Record<string, any>,
key: any,
Expand Down Expand Up @@ -278,7 +282,10 @@ export function set(
* Delete a property and trigger change if necessary.
*/
export function del<T>(array: T[], key: number): void
export function del(object: object, key: string | number): void
export function del<T extends Record<keyof any, any>, K extends keyof T>(
object: T,
key: K
): void
export function del(target: any[] | object, key: any) {
if (__DEV__ && (isUndef(target) || isPrimitive(target))) {
warn(
Expand Down