ReSharper: Visual Studio : warning use VAR

Question

Possible Duplicates:
What's the point of the var keyword?
ReSharper and var

I am using ReSharper Tool for code cleanup. it always prompt to use var instated of actual type name. it looks good but is there any advantages are there?

Examples:

when we use

Dictionary<long, Profile> dicProfile = new Dictionary<long, Profile>

it prompt to convert it to ::

 var dicProfile = new Dictionary<long, Profile>

Rian Schmits · Answer 1 · 2011-03-11T06:40:34.953

ReSharper has two types of warnings when the type can be inferred. You get a squiggly line when the type of your variable is exactly the same as the instantiated type:

Dictionary<long, Profile> dicProfile = new Dictionary<long, Profile>();

And you get a shorter underscored line when the variable's type is a base class of the instantiated type (like the IDictionary<> interface in this case):

IDictionary<long, Profile> dicProfile = new Dictionary<long, Profile>();

Whether you want this, is personal preference. I like this feature, especially in the first case, because it seems redundant to me to explicitly declare the type of a variable when it can be inferred.

If you don't want this you can turn this of by going here:

ReSharper -> Options -> Code Inspection -> Inspection Severity -> Language Usage Upportunities -> Use 'var' keyword when initializer explicitly declares type

And here:

ReSharper -> Options -> Code Inspection -> Inspection Severity -> Language Usage Upportunities -> Use 'var' keyword when possible

score 0 · Accepted Answer · answered Mar 11 '11 at 06:20

0

Quite a few resharper options are opinion based.

Use var instead of actual type name.
whatever == true is redundant.
this. is redundant
etc..

You can turn them all of in the resharper settings, or at the time it prompts you.

answered Mar 11 '11 at 06:20

Ritch Melton

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ctually they agree on their blog somewhere that this one rule iS VERY disputed. I hate it ;) – TomTom Mar 11 '11 at 06:22
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I think 'var' is one of the better language improvements as of late. This is nonsense: Dictionary, IEnumerable> stuff = new Dictionary, IEnumerable>(); var makes it better. – Ritch Melton Mar 11 '11 at 06:23
I love var - for anonymous types. I normally always hardcode all variables. – TomTom Mar 11 '11 at 07:06
i suppose the question is why is var preferred to actual data type. – Sulav Timsina Jan 10 '14 at 03:39

score 0 · Answer 3 · edited May 23 '17 at 12:04

0

Its up to you, if you want to follow what re sharper suggestion.

But Re-sharper really help .net developer to:

clean you codes 
promotes coding standards
fix syntax/refactor
remove  redundancy object declarationy using var: 

Object data = new Object to  
var data = new Object()

 And Many More..

Same Post

Regards

edited May 23 '17 at 12:04

Community

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answered Mar 11 '11 at 06:54

Crimsonland

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ReSharper: Visual Studio : warning use VAR

3 Answers3