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Update FlatMap docs to talk about nil case #314

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samber merged 1 commit into samber:master from jlaneve:patch-1

Mar 20, 2023

Contributor

jlaneve commented Feb 23, 2023 •

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One interesting use case of FlatMap that isn't intuitively obvious from the docs is the ability to return nil. For example,

var key = map[string][]string{"a": ["b","c"], "d": ["e","f"]}
var myKeys = []string{"a","c","d","g"}

lo.FlatMap(key, func(s string, _ int) []string { return key[s] })
// returns []string{"b","c","e","f"}

The docs should explicitly mention what happens if you return nil, so a user would be able to deduce this use case themselves.


          Update FlatMap docs to talk about nil case

ccc8a43

samber merged commit e2be213 into samber:master

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