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How to select from subquery using Laravel Query Builder?
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@Skyzer You're not reading what I write. Nothing is escaped when you call toSql. Read about PDO php.net/manual/en/book.pdo.php and see the result of your $query->toSql()
– Jarek Tkaczyk
Sep 23 '15 at 6:...
What is the equivalent of Java's final in C#?
... keyword has several usages in Java. It corresponds to both the sealed and readonly keywords in C#, depending on the context in which it is used.
Classes
To prevent subclassing (inheritance from the defined class):
Java
public final class MyFinalClass {...}
C#
public sealed class MyFinalClass {...}...
Adding n hours to a date in Java?
...oes exactly what Nikita's answer does, but this is very simple and easy to read. Plus, if you already use Apache Commons / Lang... why not?
– Matt
Feb 13 '18 at 16:01
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Binding to static property
...leton:
public class VersionManager : DependencyObject {
public static readonly DependencyProperty FilterStringProperty =
DependencyProperty.Register( "FilterString", typeof( string ),
typeof( VersionManager ), new UIPropertyMetadata( "no version!" ) );
public string FilterSt...
find: missing argument to -exec
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That's about the best description i've read on -exec. It's extremely powerful but I always find it difficult to get the right syntax for it. This made a few things much clearer. Particularly wrapping the command in the separate shell. Nice. Thanks.
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Getting a slice of keys from a map
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@VinayPai it is okay to read from a map from multiple goroutines but not write
– darethas
Dec 1 '17 at 2:38
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“is” operator behaves unexpectedly with integers
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@Ashwani try reading the comments right next to your comment, posted two years before yours, and you'll find the answer to your question.
– jbg
May 16 at 7:05
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Using String Format to show decimal up to 2 places or simple integer
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@BrainSlugs83: depending on the current thread's CurrentCulture, decimal separator might not be .. Unless CultureInfo.InvariantCulture is used with string.Format, you would have to check the value of CultureInfo.NumberFormat.NumberDecimalSeparator, and that would be ...
Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...of T1, whereas it is the opposite for T2 and T2'. In English, this can be read as the following:
A function A is a subtype of another function B if the parameter type of A is a supertype of the parameter type of B while the return type of A is a subtype of the return type of B.
The reason for...
MySQL select 10 random rows from 600K rows fast
... past a certain point because MySQL has to actually sort ALL records after reading each one; once that operation hits the hard disc you can feel the difference.
– Ja͢ck
Apr 10 '13 at 7:48
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