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How to check if a variable is null or empty string or all whitespace in JavaScript?
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Whitespace can also include tabs, other kinds of spaces, etc. Use /^\s*$/ to catch those, too.
– grant
Aug 9 '13 at 0:26
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One or more types required to compile a dynamic expression cannot be found. Are you missing referenc
...l: Same happened to me after upgrading a project from 4.0 to 4.5. Version#/etc is the same between 4.0/4.5 IIRC which might be the reason.
– Steven Evers
Aug 26 '13 at 22:50
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How do you comment out code in PowerShell?
...e: Send-MailMessage -To bob@bob.com #This is a comment -Subject "Help Me!" etc.
– CitizenRon
May 25 '17 at 20:05
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Error in plot.new() : figure margins too large in R
...y problem! I had expanded the "Environment" window, shrinking the "Plots", etc. window. I just had to expand the window. Thank you!
– Rock Lee
Nov 11 '14 at 22:21
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What C++ Smart Pointer Implementations are available?
...private copy constructor, being usable with STL containers and algorithms, etc. Since it's performance overhead and memory footprint are limited this is an ideal candidate for replacing, or perhaps more aptly described as owning, raw pointers. As the "unique" implies there is only one owner of the p...
In Subversion can I be a user other than my login name?
...s a better answer because it works for all SVN commands (checkout, commit, etc) where the --username flag seems to either be non-existant or slightly different for various commands...
– edwardsharp
Nov 3 '11 at 22:17
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Xcode source automatic formatting
...ly does indentation. What about moving braces, taking care of line breaks, etc?
– Peter Ajtai
Apr 30 '12 at 0:56
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Fatal error: Class 'ZipArchive' not found in
... Simple solution: sudo apt-get install php7.0-zip. Then, edit the file /etc/php/7.0/cli/php.ini (In the "Dynamic Extensions" section, add the line extension=zip.so). This should solve it
– JonyD
Sep 2 '16 at 12:05
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Should Github be used as a CDN for javascript libraries? [closed]
...'s actual MIME type. In IE9 (and perhaps other browsers/proxies/firewalls/etc), JavaScript files that aren't served with the correct content-type are blocked by default. You can see that in action on the BlockUI demo page, for example:
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How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...ecause a calculation failed - eg square root of a negative, divide by zero etc - it makes no sense in comparing them against anything else. After all if divide by zero is a nan is it equivalent to the square root of -2 or square root of -3 ?
Nan allows a calculation that includes a step that return...