const arr = []
|
const each = arr.forEach
|
const slice = arr.slice
|
|
export function defaults (obj) {
|
each.call(slice.call(arguments, 1), (source) => {
|
if (source) {
|
for (const prop in source) {
|
if (obj[prop] === undefined) obj[prop] = source[prop]
|
}
|
}
|
})
|
return obj
|
}
|
|
export function hasXMLHttpRequest () {
|
return (typeof XMLHttpRequest === 'function' || typeof XMLHttpRequest === 'object')
|
}
|
|
/**
|
* Determine whether the given `maybePromise` is a Promise.
|
*
|
* @param {*} maybePromise
|
*
|
* @returns {Boolean}
|
*/
|
function isPromise (maybePromise) {
|
return !!maybePromise && typeof maybePromise.then === 'function'
|
}
|
|
/**
|
* Convert any value to a Promise than will resolve to this value.
|
*
|
* @param {*} maybePromise
|
*
|
* @returns {Promise}
|
*/
|
export function makePromise (maybePromise) {
|
if (isPromise(maybePromise)) {
|
return maybePromise
|
}
|
|
return Promise.resolve(maybePromise)
|
}
|
