Try asynchronous function several times until it returns result

tryAsyncUntilOk.js

async function tryAsyncUntilOk(func, times = 4, timeout = 1250) {
    function delay(ms) {
        return new Promise(resolve => setTimeout(resolve, ms));
    }

    for (let i = 0; i < times; i++) {
        try {
            const res = await func();
            if (typeof res !== "undefined") {
                return res;
            } else {
                await delay(timeout);
            }
        } catch (e) {
            if (i === times - 1) {
                throw e;
            }
        }
    }
}

Test function:

let tryCount = 0;
function delayWithError(t, v) {
   return new Promise(function(resolve) { 
        if (tryCount === 0) {
           ++tryCount;
           throw new Error('Yooouuhooo');
        } else {
            ++tryCount;
            setTimeout(resolve.bind(null, v), t)
        }
   });
}

Call it:

const res = await tryAsyncUntilOk(() => delayWithError(2000, 30));