refactor: use native Promise.withResolvers

Author: PierreDemailly

src/prompts/confirm.ts

@@ -5,7 +5,7 @@ import { styleText } from "node:util";
 
 // Import Internal Dependencies
 import { AbstractPrompt, type AbstractPromptOptions } from "./abstract.ts";
-import { stringLength, withResolvers } from "../utils.ts";
+import { stringLength } from "../utils.ts";
 import { SYMBOLS } from "../constants.ts";
 
 export interface ConfirmOptions extends AbstractPromptOptions {
@@ -128,7 +128,7 @@ export class ConfirmPrompt extends AbstractPrompt<boolean> {
     this.write(SYMBOLS.HideCursor);
 
     try {
-      const { resolve, promise } = withResolvers<boolean>();
+      const { resolve, promise } = Promise.withResolvers<boolean>();
       const questionQuery = this.#getQuestionQuery();
 
       this.write(questionQuery);

src/prompts/multiselect.ts

@@ -4,7 +4,7 @@ import { styleText } from "node:util";
 
 // Import Internal Dependencies
 import { AbstractPrompt, type AbstractPromptOptions } from "./abstract.ts";
-import { stringLength, withResolvers } from "../utils.ts";
+import { stringLength } from "../utils.ts";
 import { SYMBOLS } from "../constants.ts";
 import { isValid, type PromptValidator, resultError } from "../validators.ts";
 import { type Choice } from "../types.ts";
@@ -370,7 +370,7 @@ export class MultiselectPrompt<T extends string> extends AbstractPrompt<T> {
 
     render({ initialRender: true });
 
-    const { promise, resolve } = withResolvers<T[]>();
+    const { promise, resolve } = Promise.withResolvers<T[]>();
     this.#boundKeyPressEvent = this.#onKeypress.bind(this, resolve, render);
     this.stdin.on("keypress", this.#boundKeyPressEvent);
 

src/prompts/question.ts

@@ -4,7 +4,7 @@ import { styleText } from "node:util";
 
 // Import Internal Dependencies
 import { AbstractPrompt, type AbstractPromptOptions } from "./abstract.ts";
-import { stringLength, withResolvers } from "../utils.ts";
+import { stringLength } from "../utils.ts";
 import { SYMBOLS } from "../constants.ts";
 import { isValid, type PromptValidator, resultError } from "../validators.ts";
 
@@ -55,7 +55,7 @@ export class QuestionPrompt extends AbstractPrompt<string> {
   }
 
   #question(): Promise<string> {
-    const { resolve, promise } = withResolvers<string>();
+    const { resolve, promise } = Promise.withResolvers<string>();
 
     const questionQuery = this.#getQuestionQuery();
 

src/prompts/select.ts

@@ -4,7 +4,7 @@ import { styleText } from "node:util";
 
 // Import Internal Dependencies
 import { AbstractPrompt, type AbstractPromptOptions } from "./abstract.ts";
-import { stringLength, withResolvers } from "../utils.ts";
+import { stringLength } from "../utils.ts";
 import { SYMBOLS } from "../constants.ts";
 import { isValid, type PromptValidator, resultError } from "../validators.ts";
 import { type Choice } from "../types.ts";
@@ -310,7 +310,7 @@ export class SelectPrompt<T extends string> extends AbstractPrompt<T> {
 
     render({ initialRender: true });
 
-    const { resolve, promise } = withResolvers<T>();
+    const { resolve, promise } = Promise.withResolvers<T>();
     this.#boundKeyPressEvent = this.#onKeypress.bind(this, resolve, render);
     this.stdin.on("keypress", this.#boundKeyPressEvent);
 

src/utils.ts

@@ -44,13 +44,3 @@ export function stringLength(
   return length;
 }
 
-export function withResolvers<T>() {
-  let resolve!: (value: T | PromiseLike<T>) => void;
-  let reject!: (reason?: unknown) => void;
-  const promise = new Promise<T>((res, rej) => {
-    resolve = res;
-    reject = rej;
-  });
-
-  return { promise, resolve, reject };
-}