vasille-jsx/lib/library.js

The same framework which is designed to build bulletproof frontends (JSX components)

import { ref } from "./internal.js";
export function awaited(target, createRef = ref) {
    const err = createRef(undefined);
    const value = createRef(undefined);
    let running = false;
    function run() {
        if (running) {
            return;
        }
        let current;
        running = true;
        err.V = undefined;
        value.V = undefined;
        try {
            current = target();
        }
        catch (e) {
            current = undefined;
            err.V = e;
        }
        if (current instanceof Promise) {
            current
                .then(result => (value.V = result))
                .catch(e => (err.V = e))
                .finally(() => (running = false));
        }
        else {
            value.V = current;
            running = false;
        }
    }
    run();
    return [err, value, run];
}