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How to get a key in a JavaScript object by its value?
...n associative array. Is there a simple function allowing me to get the key for a value, or do I have to iterate the object and find it out manually?
...
'float' vs. 'double' precision
...59__. An implementation that does not define that macro is free not to conform to IEEE-754.
– Stephen Canon
Feb 24 '11 at 0:06
12
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR
... to use __unsafe_unretained __block together to get the same behavior as before when using ARC and blocks.
– Hunter
Sep 6 '11 at 21:20
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TypeScript sorting an array
... if (n1 < n2) {
return -1;
}
return 0;
});
Objects
For objects, you can sort based on a property, bear in mind the above information about being able to short-hand number types. The below example works irrespective of the type.
var objectArray: { age: number; }[] = [{ age: 1...
How to set -source 1.7 in Android Studio and Gradle
...h resources require minSdkVersion 19. Other features works on previous platforms.
Link to android gradle plugin user guide
Link to see how source vs target are different
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Is Java “pass-by-reference” or “pass-by-value”?
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Java is always pass-by-value.
Unfortunately, we never handle an object at all, instead juggling object-handles called references (which are passed by value of course). The chosen terminology and semantics easily confuse many beginners.
It goes like this:
p...
C/C++ check if one bit is set in, i.e. int variable
... from 0) is set:
temp & (1 << N)
There is no builtin function for this.
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How to change a django QueryDict to Python Dict?
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This doesnt work for many libraries including authomatic. See my question and my own answer here (works with v2 and v3 of python): stackoverflow.com/questions/37026535/…
– Olivier Pons
May 4 '16 at 12:...
What happened to “HelveticaNeue-Italic” on iOS 7.0.3
...e developer preview of iOS 7.1. Here is code (provided by Apple in the dev forums) to workaround the issue:
#import <CoreText/CoreText.h>
CGFloat size = 14;
UIFont *font = [UIFont fontWithName:@"HelveticaNeue-Italic" size:size];
if (font == nil && ([UIFontDescriptor class] != nil)) {...
How should a model be structured in MVC? [closed]
...main Objects
A domain object is a logical container of purely domain information; it usually represents a logical entity in the problem domain space. Commonly referred to as business logic.
This would be where you define how to validate data before sending an invoice, or to compute the total c...