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Access Container View Controller from Parent iOS
... have the parent view controller (the one housing the container view) implement a method like this:
- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
NSString * segueName = segue.identifier;
if ([segueName isEqualToString: @"alertview_embed"]) {
AlertViewControlle...
Run an app on a multiple devices automatically in Android Studio
...When I try to run the app I'm developing, the Android Studio always prompt me to choose the device. Is there any way to deploy the app on a multiple devices automatically - by clicking Run or even better with a shortcut?
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How can I convert a string to a number in Perl?
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@OrangeDog the OP edited the question (some months after this answer was posted) - the original question actually had floating point numbers in it.
– Alnitak
Mar 14 '12 at 10:46
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Convert Pandas column containing NaNs to dtype `int`
I read data from a .csv file to a Pandas dataframe as below. For one of the columns, namely id , I want to specify the column type as int . The problem is the id series has missing/empty values.
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Windows API Code Pack: Where is it? [closed]
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I can't answer the question of why, nor do I wish to speculate (maybe someone else closer to the issue can tell us what happened), but thankfully it's not completely gone. It looks like the binaries have been reuploaded to NuGet by other developers, although note that none of the packages are off...
Which timestamp type should I choose in a PostgreSQL database?
I would like to define a best practice for storing timestamps in my Postgres database in the context of a multi-timezone project.
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What does !! mean in ruby?
..., so it's usually best to let that convention stand.
Think of it as
!(!some_val)
One thing that is it used for legitimately is preventing a huge chunk of data from being returned. For example you probably don't want to return 3MB of image data in your has_image? method, or you may not want to r...
Creating a “logical exclusive or” operator in Java
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This escaped my memory too when I wrote my post, but I think you CAN use ^ as a logical operator (as well as bitwise).
– Neil Coffey
Apr 7 '09 at 17:06
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How can I do an UPDATE statement with JOIN in SQL Server?
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Syntax strictly depends on which SQL DBMS you're using. Here are some ways to do it in ANSI/ISO (aka should work on any SQL DBMS), MySQL, SQL Server, and Oracle. Be advised that my suggested ANSI/ISO method will typically be much slower than the other two methods, but if you're using a SQL D...
What's the difference between & and && in MATLAB?
...ND operator that employs short-circuiting behaviour. Short-circuiting just means the second operand (right hand side) is evaluated only when the result is not fully determined by the first operand (left hand side)
A & B (A and B are evaluated)
A && B (B is only evaluated if A is true)
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