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What is a 'SAM type' in Java?
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To summarize the link Jon posted1 in case it ever goes down, "SAM" stands for "single abstract method", and "SAM-type" refers to interfaces like Runnable, Callable, etc. Lambda expressions, a new feature in Java 8, are considered a SAM type and can be freely converted to them.
For example, wi...
Default value of function parameter
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If you put the declaration in a header file, and the definition in a separate .cpp file, and #include the header from a different .cpp file, you will be able to see the difference.
Specifically, suppose:
lib.h
int Add(int a, int b);
lib.cpp
int Add(int a, int b = ...
How persistent is localStorage?
...ttings are stored in it. Some settings require the user the write regex'es and they would be sad if their regex rules are gone at some point.
So now I am wondering just how persistent the localStorage is.
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How to do a less than or equal to filter in Django queryset?
...tom field in each users profile called profile. This field is called level and is an integer between 0-3.
1 Answer
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Class with Object as a parameter
...izeof__', '__str__', '__subclasshook__', '__weakref__']
Also, properties and super do not work with classic classes.
In Python2 it is a good idea to make all classes new-style classes. (Though a lot of classes in the standard library are still classic classes, for the sake of backward-compatibili...
How can I dynamically create derived classes from a base class
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This bit of code allows you to create new classes with dynamic
names and parameter names.
The parameter verification in __init__ just does not allow
unknown parameters, if you need other verifications, like
type, or that they are mandatory, just add the logic
there:
class BaseClass(object):...
cout is not a member of std
I'm practicing using mulitple files and header files etc. So I have this project which takes two numbers and then adds them. Pretty simple.
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Why git AuthorDate is different from CommitDate?
I lookup my git logs and find that the AuthorDate and CommitDate is slightly different for some of my commits:
2 Answers
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How to get the PATH environment-variable separator in Python?
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If, like me, you didn't read the body of this question and just went by the title, you'll think this is the character that separates elements of a filesystem path (forward slash on Linux and MacOSX, backslash on Windows). It's not, it the character that separates elements of a s...
Apply CSS style attribute dynamically in Angular JS
...ly.
Expression which evals to an object whose keys are CSS style names and values are corresponding values for those CSS keys. Since some CSS style names are not valid keys for an object, they must be quoted.
ng-style="{color: myColor}"
Your code will be:
<div ng-style="{'width':'20px', ...