C# VAR Keyword | C# Tutorial for Beginners | VAR Keyword in C# | CSharp Using VAR Keyword

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In this video we will see when to use C# Var keyword and when not use it.
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[@p3ter408]

Very clear and helpful! I'm learning LINQ and now it understand why it was using var.

[@imranjalali]

I would like to add here something var keyword can be used at method level and can't be used on class level variable.

[@MegaKasi1]

Nice explanation.

[@dale7986]

Thank you!

[@beritaasiatimurraya1785]

oooh i see var keyword is like type data Any in kotlin
btw thanks for the information sir

[@silas_wolf]

Very helpful video! Thank you!

[@ronaldjohnson4470]

Very helpful, thank you.

[@faris_diz]

Greatvid

[@MrShapronForU]

But if you don’t know the datatype and u using var, its hard to work with the variable and to know which method you can use on the value

[@shahed308]

great tutorial, thanks man

[@NAMBINRAJAN]

In javascript all we use ia var let .and what is the need of looking into its type if var is used,in worst case of type conversation we can just hover of the near by variable ,dont even have to go into the definition.
My question is will thr be any performance difference?

[@questpondvideos]

var should be only used when its difficult to predict the data type looking at the right hand side.

[@mortyjr2334]

@@questpondvideos var is mostly used in LINQ, so many jobs I have worked over the years and no one ever wants to use var because it causes more readability issues.

[@questpondvideos]

@@mortyjr2334 thats what i said in the top answer / same iterated in the video , when its difficult to predict the final data type of the RHS( right hand side) of equal operator like LINQ , Anon functions.

[@uflidd]

@@questpondvideos I'm not sure I agree much to the point of readability. But more importantly, I feel are not answered here, is if var comes with a cost on performance?

[@questpondvideos]

@@uflidd In C# var does not come at cost as its figured out during the compile time.

[@keissimylly4568]

Thank you this was a good video.
So I use var when I have multiple or unknown datatypes in my code?
Example.
var = myType12.1true;
?