async promto(): Promise
Creates a new promise which will be rejected upon timeout (after N milliseconds). It will be resolved with the promise value or rejected with the promise error when not timed out.
```js
import promto from 'promto'
/**
* @param {number} timeout
* @param {string|Error} result
*/
const makePromise = async (timeout, result) => {
await new Promise((resolve) => {
setTimeout(resolve, timeout || 200)
})
if (result instanceof Error) throw result
return result
}
(async () => {
// ok
const res = await promto(makePromise(50, 'hello'), 100)
console.log(res)
// rejected timeout
try {
await promto(makePromise(150, 'world'), 100)
} catch (err) {
console.log(err.message)
}
// rejected timeout with description
try {
await promto(makePromise(150, 'world'), 100, 'Example')
} catch (err) {
console.log(err.message)
}
// rejected promise
try {
await promto(makePromise(50, new Error('Error in promise')), 100)
} catch (err) {
console.log(err.message)
}
})()
```
```
hello
Promise has timed out after 100ms
Example has timed out after 100ms
Error in promise
```
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