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Identify if a string is a number
...r
var isNumeric = int.TryParse("123", out _);
The var s can be replaced by their respective types!
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Using Python 3 in virtualenv
...n the OP's version of virtualenv, as described here. The problem was fixed by running:
pip install --upgrade virtualenv
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Hibernate: “Field 'id' doesn't have a default value”
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In many cases this problem can also be resolved by just dropping the offending table (or tables), assuming that Hibernate is set up to automatically create/manage the DB schema. To drop tables from a managed schema, SET foreign_key_checks = 0; is your friend. Just be sur...
Missing file warnings showing up after upgrade to Xcode 4
...thing to do with .svn hidden folders in your project.
I solved this issue by detaching the project from svn.
a. Open terminal and type the following commands:
defaults write com.apple.finder AppleShowAllFiles TRUE
killall Finder
This will allow you to view the .svn folders inside your projec...
Click event doesn't work on dynamically generated elements [duplicate]
...as trying to generate a new tag with class name test in the <h2> by clicking the button. I also defined a click event associated with test . But the event doesn't work.
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How do you round UP a number in Python?
... you can get the Python 3.x on behavior on certain versions of Python 2.x by enabling "true division" as shown here
– Rob Dennis
Oct 22 '13 at 17:54
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Query for documents where array size is greater than 1
...Update:
For mongodb versions 2.2+ more efficient way to do this described by @JohnnyHK in another answer.
1.Using $where
db.accommodations.find( { $where: "this.name.length > 1" } );
But...
Javascript executes more slowly than the native operators listed on
this page, but is very fle...
How do I determine if my python shell is executing in 32bit or 64bit?
...e now documented sys.maxsize test for Python 2.6+ and the struct test used by the platform module which also works for older versions of Python 2.
– Ned Deily
Mar 30 '11 at 17:43
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Is there a fixed sized queue which removes excessive elements?
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@BasilBourque yes, but such edits can be rejected even by me when changing links it's a gray area
– user7294900
Oct 22 '18 at 16:41
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How to make the hardware beep sound in Mac OS X 10.6
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The terminal bell predates the PC of the 90's by nearly 100 years: en.wikipedia.org/wiki/Bell_character
– kwerle
Aug 28 '19 at 21:28
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