Function retry

Retries a single task up to times times, with a delay of delayms between each attempt.

If times is zero, it repeats until it is successful

Returns when an attempt at a task is successful

Example

// A task with a 1s timeout
const task = Promise.race([() => getResource('foo'), new Promise((_,rej) => setTimeout(rej,1000))]);
retry(() => getResource('foo').timeout(1000), 5)
  .then(useResource);

This will attempt to get foo up to 5 times. It will stop trying when it gets it.

Returns