{"id":66,"date":"2009-10-08T20:30:59","date_gmt":"2009-10-09T03:30:59","guid":{"rendered":"http:\/\/www.nerdhive.org\/glob\/?p=66"},"modified":"2009-10-08T20:30:59","modified_gmt":"2009-10-09T03:30:59","slug":"syntactic-sugar-c-var-keyword","status":"publish","type":"post","link":"http:\/\/www.soleillapierre.ca\/blog\/?p=66","title":{"rendered":"Syntactic sugar: C# ‘var’ keyword"},"content":{"rendered":"

Learned this recently. In .NET 3.5, you can substitute ‘var’ for any type name that can be determined at compile time. So instead of typing (for example):<\/p>\n

1
<\/div><\/td>
    Dictionary<<\/span>MyKeyType, MyValueType><\/span> foo =<\/span> new<\/span> Dictionary<<\/span>MyKeyType, MyValueType><\/span>(<\/span>)<\/span>;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

I can instead just type:<\/p>\n

1
<\/div><\/td>
    var foo =<\/span> new<\/span> Dictionary<<\/span>MyKeyType, MyValueType><\/span>(<\/span>)<\/span>;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

This isn’t the same thing as making ‘foo’ be of type object; foo is still strongly typed. You just don’t have to enter the type twice.<\/p>\n

It’s a minor thing, but type names can get long in C#, especially if you use generics, and I like anything that reduces redundant code entry.<\/p>\n","protected":false},"excerpt":{"rendered":"

Learned this recently. In .NET 3.5, you can substitute ‘var’ for any type name that can be determined at compile time. So instead of typing (for example): 1    Dictionary<MyKeyType, MyValueType> foo = new Dictionary<MyKeyType, MyValueType>(); I can instead just type: 1    var foo = new Dictionary<MyKeyType, MyValueType>(); This isn’t the same thing as […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-66","post","type-post","status-publish","format-standard","hentry","category-softwarehacking"],"_links":{"self":[{"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=\/wp\/v2\/posts\/66","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=66"}],"version-history":[{"count":0,"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=\/wp\/v2\/posts\/66\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=66"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.soleillapierre.ca\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}