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Deprecate utils function defer in favour of Promise.withResolvers (#4829)

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* Switch from defer to Promise.withResolvers

As supported by the outgoing LTS version (v22) which has 99% support of ES2024

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* delint

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Deprecate defer instead of killing it

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Knip

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Iterate based on review

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Iterate based on review

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Iterate based on review

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Improve coverage

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

---------

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
This commit is contained in:
Michael Telatynski
2025-05-09 11:16:35 +01:00
committed by GitHub
parent d24c5d8b2b
commit 1fcc375dd5
32 changed files with 220 additions and 221 deletions
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21
src/utils.ts
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@@ -436,23 +436,14 @@ export function isNullOrUndefined(val: any): boolean {
return val === null || val === undefined;
}
export interface IDeferred<T> {
resolve: (value: T | Promise<T>) => void;
reject: (reason?: any) => void;
promise: Promise<T>;
}
export type IDeferred<T> = PromiseWithResolvers<T>;
// Returns a Deferred
/**
* Creates a deferred promise. This is a promise that can be resolved or rejected.
* @deprecated use {@link Promise.withResolvers} instead.
*/
export function defer<T = void>(): IDeferred<T> {
let resolve!: IDeferred<T>["resolve"];
let reject!: IDeferred<T>["reject"];
const promise = new Promise<T>((_resolve, _reject) => {
resolve = _resolve;
reject = _reject;
});
return { resolve, reject, promise };
return Promise.withResolvers<T>();
}
export async function promiseMapSeries<T>(