You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
20 lines
344 B
20 lines
344 B
module.exports = thunkyp
|
|
|
|
function thunkyp (fn) {
|
|
let running = null
|
|
|
|
return ready
|
|
|
|
function ready () {
|
|
if (running) return running
|
|
const p = fn()
|
|
if (!(p instanceof Promise)) running = Promise.resolve(p)
|
|
else running = p
|
|
running.catch(onerror)
|
|
return running
|
|
}
|
|
|
|
function onerror () {
|
|
running = null
|
|
}
|
|
}
|