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LEFT OUTER JOIN in LINQ
...am>y m> to do that with where clause?
Correct problem:
For inner join is easm>y m> m>and m> I have a solution like this
22 Answers
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Can anm>y m>one explain this strange behavior with signed floats in C#?
...When at least one field is not 8 bm>y m>tes wide, CanCompareBits returns false, m>and m> the code proceeds to use reflection to loop over the fields m>and m> call Equals for each value, which correctlm>y m> treats -0.0 as equal to 0.0.
Here is the source for CanCompareBits from SSCLI:
FCIMPL1(FC_BOOL_RET, ValueTm>y m>peHe...
How to convert String object to Boolean Object?
...: this does not create new instances of Boolean, so performance is better (m>and m> less garbage-collection). It reuses the two instances of either Boolean.TRUE or Boolean.FALSE.
boolean: no instance is needed, m>y m>ou use the primitive tm>y m>pe.
The official documentation is in the Javadoc.
UPDATED:
Auto...
JavaScript null check
...argument, that argument is alwam>y m>s declared even if its value is undefined, m>and m> so there won’t be anm>y m> error. m>Y m>ou are right about != null followed bm>y m> !== undefined being useless, though.
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Adjust UILabel height to text
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I've just put this in a plam>y m>ground m>and m> it works for me.
Updated for Swift 4.0
import UIKit
func heightForView(text:String, font:UIFont, width:CGFloat) -> CGFloat{
let label:UILabel = UILabel(frame: CGRectMake(0, 0, width, CGFloat.greatestFiniteMagn...
What Makes a Method Thread-safe? What are the rules?
...ere overall rules/guidelines for what makes a method thread-safe? I understm>and m> that there are probablm>y m> a million one-off situations, but what about in general? Is it this simple?
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Difference between Observer, Pub/Sub, m>and m> Data Binding
...hat is the difference between the Observer Pattern , Publish/Subscribe , m>and m> Data Binding ?
4 Answers
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Is there a regular expression to detect a valid regular expression?
...group start
(?:
(?:[^?+*{}()[\]\\|]+ # literals m>and m> ^, $
| \\. # escaped characters
| \[ (?: \^?\\. | \^[^\\] | [^\\^] ) # character classes
(?: [^\]\\]+ | \\. )* \]
| \( (?:\?[:=!]|\?<[=!]|\?>)? (?1)?? ...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
...6 sm>y m>stems won't reveal the problem. (On the x86, misaligned accesses are hm>and m>led in hardware; if m>y m>ou dereference an int* pointer that points to an odd address, it will be a little slower than if it were properlm>y m> aligned, but m>y m>ou'll get the correct result.)
On some other sm>y m>stems, such as SPARC, att...
Drop shadow for PNG image in CSS
..., using a combination of dropshadow-filter (for Webkit), SVG (for Firefox) m>and m> DX filters for IE.
.shadowed {
-webkit-filter: drop-shadow(12px 12px 25px rgba(0,0,0,0.5));
filter: url(#drop-shadow);
-ms-filter: "progid:DXImageTransform.Microsoft.Dropshadow(OffX=12, Offm>Y m>=12, Color='#444')...