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Is there any performance gain in indexing a boolean field?
I'm just about to write a query that includes a WHERE isok=1 . As the name implies, isok is a boolean field (actually a TINYINT(1) UNSIGNED that is set to 0 or 1 as needed).
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phonegap open link in browser
...ur www/cordova_plugins.js has both the device and the inappbrowser configs included. When I install plugins, it adds the js & plugins configs to the staging folder and not my primary working www folder. Once I sorted out the config and locations, this worked perfectly.
– M...
Best way to convert IList or IEnumerable to Array
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ahh... the unit test project does not include the linq by default. Thank you!
– zsf222
Oct 25 '15 at 4:51
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How to build jars from IntelliJ properly?
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It fails when some classes in your included jar are signed with RSA.
– Asif Shahzad
Mar 7 '12 at 13:01
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What is the difference between functional and non functional requirement? [closed]
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meet.
The IEEE-Std 830 - 1993 lists 13 non-functional requirements to be included in a Software Requirements Document.
Performance requirements
Interface requirements
Operational requirements
Resource requirements
Verification requirements
Acceptance requirements
Documentation ...
Find first element by predicate
... Don't use orElse null. That should be an anti-pattern. It is all included in the Optional so why should you risk a NPE? I think dealing with Optional is the better way. Just test the Optional with isPresent() before you use it.
– BeJay
Jan 4 '18 at 9:...
Reset the database (purge all), then seed a database
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I use rake db:reset which drops and then recreates the database and includes your seeds.rb file.
http://guides.rubyonrails.org/migrations.html#resetting-the-database
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Does opacity:0 have exactly the same effect as visibility:hidden
... How would that effect the result then? Perhaps in terms of what is included in the DOM? My test cases show that Mozilla is not throwing away visibility:hidden elements.
– Chris Noe
Nov 7 '08 at 15:18
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Load multiple packages at once
...e most intuitive way:
libraries("plyr", "psych", "tm")
The package also includes a function to install several packages:
packages("plyr", "psych", "tm")
Reference here.
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Keyboard shortcuts in WPF
...d with a menu item? Surely that would be the most important information to include in this answer, but it’s missing.
– Timwi
Feb 6 '11 at 13:04
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