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@Yopadd
Created February 16, 2018 07:15
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return a flatten map resolved by async function
async function asyncFlatMap (arr, asyncFn) {
return Promise.all(flatten(await asyncMap(arr, asyncFn)))
}
function asyncMap (arr, asyncFn) {
return Promise.all(arr.map(asyncFn))
}
function flatMap (arr, fn) {
return flatten(arr.map(fn))
}
function flatten (arr) {
return [].concat(...arr)
}
module.exports = {
asyncFlatMap,
asyncMap,
flatMap,
flatten
}
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Yopadd commented Oct 13, 2022

@peveuve If you want flat first you don't need a function. You could write flatten(arr).map(fn).
Actually, this gist is a little bit obsolete because now we have official flatMap and flat

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