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How can I set NODE_ENV=production on Windows?

...shell, so use: $env:NODE_ENV="production" Per @jsalonen's answer below. If you're in CMD (which is no longer maintained), use set NODE_ENV=production This should be executed in the command prompt where you intend to run your Node.js application. The above line would set the environment variab...
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How do you make an array of structs in C?

... of the struct type and then actually making an instance of it - I have a different struct, one that I defined the contents of below where I first make an instance of it (just one this time, not an array), so why didn't this make the massive series of errors? It worked just fine, which led me to th...
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What is the difference between Modal and Push segue in Storyboards?

Can someone explain to me what is the exact difference between modal and push segue? 4 Answers ...
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PostgreSQL ERROR: canceling statement due to conflict with recovery

...ueries on slaves with a duration less than 900 seconds won't be cancelled. If your workload requires longer queries, just set these options to a higher value. share | improve this answer | ...
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How to define multiple CSS attributes in jQuery?

... Better to just use .addClass() and .removeClass() even if you have 1 or more styles to change. It's more maintainable and readable. If you really have the urge to do multiple CSS properties, then use the following: .css({ 'font-size' : '10px', 'width' : '30px', 'height' ...
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Plurality in user messages

... If there is ever any chance, no matter how small, that this app will need to be translated to other languages then both are wrong. The correct way of doing this is: string message = ( noofitemsselected==1 ? "You have selec...
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In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?

...ntent) from the Object. The session with the same key is still alive. So, if you use Session.Abandon(), you lose that specific session and the user will get a new session key. You could use it for example when the user logs out. Use Session.Clear(), if you want that the user remaining in the same ...
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What is going wrong when Visual Studio tells me “xcopy exited with code 4”

... Click > Properties > Build Events > Post Build Event. Note that if the $(ProjectDir) or similar macro terms have spaces in the resulting paths when expanded, then they will need to be wrapped in double quotes. For example: xcopy "$(ProjectDir)Library\dsoframer.ocx" "$(TargetDir)" /Y /E /...
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How can I implode an array while skipping empty array items?

... You can use array_filter(): If no callback is supplied, all entries of input equal to FALSE (see converting to boolean) will be removed. implode('-', array_filter($array)); Obviously this will not work if you have 0 (or any other value that evaluat...
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default select option as blank

...</select> -- select an option -- Will be displayed by default. But if you choose an option,you will not be able select it back. You can also hide it using by adding an empty option <option style="display:none"> so it won't show up in the list anymore. Option 2 If you don't want to...