15 lines
320 B
JavaScript
15 lines
320 B
JavaScript
|
'use strict'
|
||
|
|
|
||
|
|
module.exports = function isPromise (val) {
|
||
|
|
return (
|
||
|
|
val &&
|
||
|
|
val.then &&
|
||
|
|
val.then instanceof Function &&
|
||
|
|
val.constructor &&
|
||
|
|
val.constructor.reject &&
|
||
|
|
val.constructor.reject instanceof Function &&
|
||
|
|
val.constructor.resolve &&
|
||
|
|
val.constructor.resolve instanceof Function
|
||
|
|
)
|
||
|
|
}
|