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UICollectionView reloadData not functioning properly in iOS 7
...lost two days on it because I could not understand what was happening, and now that I applied your solution and that it works, I still do not understand why it is now working. That's so frustrating ! Anyway, thanks for the help :D !!
– CyberDandy
Dec 29 '14 at ...
How do you delete a column by name in data.table?
...hough data.table is gradually moving away from using this argument so it's now discouraged where you can avoid it; showing here so you know the option exists in case you really do need it:
# Method 5a (like Method 3)
df3[, !"foo", with=FALSE]
# Method 5b (like Method 4)
df3[, !grep("^foo$", names(...
Should try…catch go inside or outside a loop?
...on was getting on my nerves! In the case of optimizations, since we can't know which way the performance would be affected, I guess were back to try-it-and-test (as always).
– Jeffrey L Whitledge
Sep 27 '08 at 18:35
...
How to install CocoaPods?
...There are X dependencies from the Podfile
and X total pods installed."
Now close your Xcode project. Then locate and open the .xcworkspace Xcode project file and start coding. (You should no longer open the xcodeproj file)
...
Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
...
To be honest I don't know how to check the content of the validation errors. Visual Studio shows me that it's an array with 8 objects, so 8 validation errors.
Actually you should see the errors if you drill into that array in Visual studio durin...
ActiveRecord OR query
...s noted in this pull request https://github.com/rails/rails/pull/9052
For now, simply sticking with the following works great:
Foo.where('foo= ? OR bar= ?', 'bar', 'bar')
Update: According to https://github.com/rails/rails/pull/16052 the or feature will be available in Rails 5
Update: Feature h...
JSON Stringify changes time of date because of UTC
... currentDate = new Date();
currentDate = JSON.stringify(currentDate);
// Now currentDate is in a different format... oh gosh what do we do...
currentDate = new Date(JSON.parse(currentDate));
// Now currentDate is back to its original form :)
...
Understanding __get__ and __set__ and Python descriptors
... make sure those divisions are / 5.0 and / 9.0). That gives:
100.0
32.0
Now there are other, arguably better ways to achieve the same effect in python (e.g. if celsius were a property, which is the same basic mechanism but places all the source inside the Temperature class), but that shows what c...
Best practice for nested fragments in Android 4.0, 4.1 (
...Manager - Solution
Solution, Sure! I have been doing this for a long time now, (since the ViewPager was announced).
See below; This is a Fragment that defers loading, so Fragments can be loaded inside of it.
Its pretty simple, the Handler is a really really handy class, effectively the handler wa...
“message failed to fetch from registry” while trying to install any module
...l -y nodejs
Note - the previous advice was to use Chris Lea's repo, he's now migrated that to nodesource, see:
https://chrislea.com/2014/07/09/joining-forces-nodesource/
https://nodesource.com/blog/chris-lea-joins-forces-with-nodesource
From: here
...