Kuba Orlik
5a704c3d48
Reviewers: #reviewers Subscribers: jenkins-user Differential Revision: https://hub.sealcode.org/D1451
42 lines
1.0 KiB
TypeScript
42 lines
1.0 KiB
TypeScript
import type { BaseContext } from "koa";
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import qs from "qs";
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export async function sleep(time: number) {
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return new Promise((resolve) => setTimeout(resolve, time));
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}
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export type Awaited<T> = T extends Promise<infer U> ? U : T;
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export type UnwrapArray<T> = T extends Array<infer U> ? U : T;
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export function* naturalNumbers(min: number, max: number) {
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for (let i = min; i <= max; i++) {
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yield i;
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}
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}
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export function UrlWithNewParams(
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ctx: BaseContext,
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query_params: Record<string, unknown>
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): string {
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return `${ctx.path}?${qs.stringify(query_params)}`;
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}
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export function shuffle<T>(array: T[]): T[] {
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const array_copy = [...array];
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let currentIndex = array_copy.length;
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// While there remain elements to shuffle...
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while (currentIndex != 0) {
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// Pick a remaining element...
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const randomIndex = Math.floor(Math.random() * currentIndex);
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currentIndex--;
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// And swap it with the current element.
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[array_copy[currentIndex], array_copy[randomIndex]] = [
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array_copy[randomIndex],
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array_copy[currentIndex],
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];
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}
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return array_copy;
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}
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