why func() is too favourite to MS Linq devs.

Sachin Singh

why Linq developers has used func<> in places where Predicate was suffice.

for example the where extension method actually takes a func with bool as output

means it takes func but they have given it a name of predicate.

when they could directly take predicate like they have used in Find extension method , why not in where method?

2 Replies

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Rajanikant Hawaldar5y ago
Accepted answer
Predicate was introduced in .NET Framework 2.0, while Func and Action arrived in .NET 3.5, alongside linq, probably when they introduced linq they used action<> and func<> everywhere for consistency at the end of the day doesn't make any real difference, a function matching predicate will match func too
Sachin Singh5y ago
sounds convincing sir.
Otherwise there is really no reason to not use predicate directly.
And sir perhaps its typo, you wanted to say earlier insted of later.