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What is the facade design pattern?
...almost any class. Must the subsystem's classes be very tight related, e.g. form a module or a library, that one could call the facade a facade?
– Benni
Jan 17 '19 at 6:03
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Is ServiceLocator an anti-pattern?
... a StackOverflow answer that clearly illustrates this benefit in graphical form, which not only applies when using a service locator from another library, but also when using foreign defaults in services.
share
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Using Panel or PlaceHolder
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In 2009, when WebForms was the de facto .NET way of doing ASP.NET dev, then yes. In December 2012, almost 4 years later probably not. Odd comment
– Ray Booysen
Feb 12 '13 at 15:56
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Convert JavaScript String to be all lower case?
...ivalent to:
var lower = new Date().toString().toLowerCase();
The second form is generally preferred for its simplicity and readability. On earlier versions of IE, the first had the benefit that it could work with a null value. The result of applying toLowerCase or toLocaleLowerCase on null would ...
The difference between sys.stdout.write and print?
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print is just a thin wrapper that formats the inputs (modifiable, but by default with a space between args and newline at the end) and calls the write function of a given object. By default this object is sys.stdout, but you can pass a file using the "chevron...
How can we match a^n b^n with Java regex?
...ktracking as you allow until the given pattern matches. This may impact performance (i.e. catastrophic backtracking) and/or correctness.
Step 5: Self-possession to the rescue!
The "fix" should now be obvious: combine optional repetition with possessive quantifier. That is, instead of simply ?, use ...
Why do we usually use || over |? What is the difference?
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If you use the || and && forms, rather than the | and & forms of these operators, Java will not bother to evaluate the right-hand operand alone.
It's a matter of if you want to short-circuit the evaluation or not -- most of the time you want to....
When to use setAttribute vs .attribute= in JavaScript?
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You should always use the direct .attribute form (but see the quirksmode link below) if you want programmatic access in JavaScript. It should handle the different types of attributes (think "onload") correctly.
Use getAttribute/setAttribute when you wish to deal with ...
Switch statement fallthrough in C#?
..., or using the special goto case (see case 1) or goto default (see case 2) forms:
switch (/*...*/) {
case 0: // shares the exact same code as case 1
case 1:
// do something
goto case 2;
case 2:
// do something else
goto default;
default:
// do...
What does asterisk * mean in Python? [duplicate]
...
See Function Definitions in the Language Reference.
If the form *identifier is
present, it is initialized to a tuple
receiving any excess positional
parameters, defaulting to the empty
tuple. If the form **identifier is
present, it is initialized to a new
dictionary recei...