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What is the purpose of a question mark after a type (for example: int? myVariable)?

...value type, plus an additional null value. For example, a Nullable<Int32>, pronounced "Nullable of Int32," can be assigned any value from -2147483648 to 2147483647, or it can be assigned the null value. A Nullable<bool> can be assigned the values true, false, or null. The ability...
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mvn clean install vs. deploy vs. release

... Colin HebertColin Hebert 82.7k1313 gold badges148148 silver badges145145 bronze badges add a...
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Stream vs Views vs Iterators

... answered Mar 1 '11 at 19:31 Daniel C. SobralDaniel C. Sobral 280k8282 gold badges469469 silver badges666666 bronze badges ...
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Delete multiple objects in django

...ement your own, combine ModelForms and generic views. Otherwise, look into 3rd party apps that provide similar functionality. In a related question, the recommendation was django-filter. share | im...
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How can I get the sha1 hash of a string in node.js?

...Hash('sha1') shasum.update('foo') shasum.digest('hex') // => "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33" share | improve this answer | follow | ...
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fatal: 'origin' does not appear to be a git repository

... | edited May 23 '17 at 12:17 Community♦ 111 silver badge answered Mar 26 '13 at 13:13 ...
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How to use a switch case 'or' in PHP

...swered Oct 16 '08 at 0:26 user19302user19302 add a comment ...
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Ruby / Rails - Change the timezone of a Time, without changing the value

... 73 Sounds like you want something along the lines of ActiveSupport::TimeZone.new('America/New_Yor...
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Can a JSON value contain a multiline string

... | edited Dec 30 '13 at 12:37 answered May 22 '13 at 11:08 ...
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Return from lambda forEach() in java

... answered May 1 '14 at 11:53 Ian RobertsIan Roberts 112k1515 gold badges154154 silver badges173173 bronze badges ...