54 lines
1.3 KiB
TypeScript
54 lines
1.3 KiB
TypeScript
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import { Option, Some, None, none } from "optionals";
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export function catcher<T>(f: () => T): Option<T> {
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try {
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return Some(f());
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} catch {
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// There is no need to define what is already undefined.
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return None();
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}
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}
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export async function catcher_async<T>(
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f: () => Promise<T>
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): Promise<Option<T>> {
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try {
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return Some(await f());
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} catch {
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return None();
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}
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}
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export function squish_option<T>(opt: Option<Option<T>>): Option<T> {
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return opt.unwrapOr(None());
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}
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export function json_response(obj: any, options?: ResponseInit): Response {
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return new Response(JSON.stringify(obj), {
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...options,
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headers: { "Content-Type": "application/json" },
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});
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}
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export function fetch_json(
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input: RequestInfo | URL,
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init?: RequestInit
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): Promise<Option<any>> {
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return catcher_async(() => fetch(input, init).then(j => j.json()));
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}
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export function class_list(...classes: Array<string | undefined>): string {
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return classes.filter(Boolean).join(" ");
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}
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export function remove_undefined_keys(obj: any): any {
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return Object.keys(obj).reduce((acc, key) => {
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if (obj[key] !== undefined && obj[key] !== "") {
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acc[key] = obj[key];
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}
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return acc;
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}, {});
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}
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export const URL = "http://fl.pyrope.net";
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