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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?

... The reason for first one working: From MSDN: In string concatenation operations,the C# compiler treats a null string the same as an empty string, but it does not convert the value of the original null string. More information on the + binary operator: The binary + operat...
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Error: Argument is not a function, got undefined

... My answer was not an extra space but it lead me to my fix. I had Controller instead of controller and that was all it took. – Grandizer Oct 26 '15 at 21:05 ...
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Viewing my IIS hosted site on other machines on my network

... </bindings> </site> ... </sites> Just add extra lines to reflect your machine IP and designated port <bindings> <binding protocol="http" bindingInformation="*:63000:localhost" /> <binding protocol="http" bindingInformation="*:63000:10.0.0.201"...
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A potentially dangerous Request.Form value was detected from the client

...erently dangerous. It's only dangerous in a specific context: when writing strings that haven't been encoded to HTML output (because of XSS). In other contexts different sub-strings are dangerous, for example, if you write an user-provided URL into a link, the sub-string "javascript:" may be dangero...
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Why should you remove unnecessary C# using directives?

... Leaving extra using directives is fine. There is a little value in removing them, but not much. For example, it makes my IntelliSense completion lists shorter, and therefore easier to navigate. The compiled assemblies are not affe...
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How to copy a file to multiple directories using the gnu cp command

... Thanks for the answer! Now that I think about it a bit more, without extra flags (which do not exist) cp will not know what is the source and what is the DEST dir. – Tom Feiner Oct 12 '08 at 16:39 ...
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Date vs DateTime

...); Date independenceDay = Date.Parse("2013-07-04"); independenceDay.ToLongString(); // "Thursday, July 4, 2013" independenceDay.ToShortString(); // "7/4/2013" independenceDay.ToString(); // "7/4/2013" independenceDay.ToString("s"); // "2013-07-04" int july = independenceDay.Month; ...
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Use Font Awesome Icons in CSS

...text character where you want it, without having to add all kinds of messy extra mark-up. Be sure to set position:relative on your actual text wrapper for the positioning to work. .mytextwithicon { position:relative; } .mytextwithicon:before { content: "\25AE"; /* this is your text. Y...
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Error “The goal you specified requires a project to execute but there is no POM in this directory” a

...hetypes" "-DarchetypeArtifactId=java-simple" with interactive mode or with extra parameters. – Andrey Lebedenko Jul 25 '18 at 14:45 add a comment  |  ...
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AddRange to a Collection

... I am serious, actually.The main reason is that it's extra cognitive-load, which is often really quite difficult. You're constantly trying to evaluate negative conditions, which is usually relatively hard, you have both branches anyway, it's (IMO) easier to say 'if null' do th...