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When should I use Arrow functions in ECMAScript 6?
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A while ago our team migrated all its code (a mid-sized AngularJS app) to JavaScript compiled using Traceur Babel. I'm now using the following rule of thumb for functions in ES6 and beyond:
Use function in the global scope and for Object.prototype prope...
Difference between int[] array and int array[]
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They are semantically identical. The int array[] syntax was only added to help C programmers get used to java.
int[] array is much preferable, and less confusing.
sh...
When should use Readonly and Get only properties
...e construction of an object (in the constructor).
private string _name = "Foo"; // field for property Name;
private bool _enabled = false; // field for property Enabled;
public string Name{ // This is a readonly property.
get {
return _name;
}
}
public bool Enabled{ // This is a read- a...
gitignore does not ignore folder
...der. Inside the foo folder I have a bar folder. I would like to ignore all changes to all files inside my bar folder. I have this in my gitignore :
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Checking if sys.argv[x] is defined
...he end, the difference between try, except and testing len(sys.argv) isn't all that significant. They're both a bit hackish compared to argparse.
This occurs to me, though -- as a sort of low-budget argparse:
arg_names = ['command', 'x', 'y', 'operation', 'option']
args = dict(zip(arg_names, sys.a...
Tuples( or arrays ) as Dictionary keys in C#
... answered Jun 5 '09 at 14:06
HallgrimHallgrim
13.8k99 gold badges4040 silver badges5353 bronze badges
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How can I extend typed Arrays in Swift?
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BTW What you’ve defined here is functionally equivalent to the existing filter function: let x = ["A","B","C","X”].filter { $0.compare("A") > 0 }
– Palimondo
Jun 13 '14 at 0:10
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Why does Pycharm's inspector complain about “d = {}”?
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apparently it is for all these non-useful noisy inspections unfortunately some of my colleagues turn it off altogether, it is a shame because it is useful for many things like PEP, ..., real problems and real performance hints.
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Optional Methods in Java Interface
...lections are an exception" suggests a very fuzzy understanding of what's really going on here.
It's important to realize that there are sort of two levels of conforming to an interface:
What the Java language can check. This pretty much just boils down to: is there some implementation for each of...
Is null reference possible?
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References are not pointers.
8.3.2/1:
A reference shall be initialized to
refer to a valid object or function.
[Note: in particular, a null reference
cannot exist in a well-defined
program, because the only way to
create such a reference would be to
bind it to the ...