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Check whether number is even or odd
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@crush n % 2 == 0 semantically means Divide by 2 and check if the remainder is 0, which is much clearer than n & 1 == 0 which means Zero all the bits but leave the least significant bit unchanged and check if the result is 0. The improved clarity of the first is wo...
What is the explicit promise construction antipattern and how do I avoid it?
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The deferred antipattern (now explicit-construction anti-pattern) coined by Esailija is a common anti-pattern people who are new to promises make, I've made it myself when I first used promises. The problem with the above code is that is fails to utilize the fact that promises chain.
Promises can...
window.onload vs
...event called DOMContentLoaded which fires earlier, but it is not supported by IE (at the time of writing this answer). I'd recommend using a javascript library which supports a cross browser DOMContentLoaded feature, or finding a well written function you can use. jQuery's $(document).ready(), is ...
What is the difference between JavaScript and ECMAScript?
... answer says very little and basically points you to Wikipedia. The answer by Yang Li is much more detailed and useful. Also, whether one is the language/standard and other the dialect, or implementation etc is open to opinion, and not fact, from what I understand. Whereas this answer makes it appea...
Is it .yaml or .yml?
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So which am I supposed to use? The proper 4 letter extension suggested by the creator, or the 3 letter extension found in the wild west of the internet?
This question could be:
A request for advice; or
A natural expression of that particular emotion which is experienced, while one is observi...
Do subclasses inherit private fields?
...2):
Members of a class that are declared
private are not inherited by
subclasses of that class. Only members
of a class that are declared protected
or public are inherited by subclasses
declared in a package other than the
one in which the class is declared.
This addresses the ex...
SQL DROP TABLE foreign key constraint
... still the same 'Could not drop object 'my_table' because it is referenced by a FOREIGN KEY constraint.
– FrenkyB
Nov 16 '15 at 13:00
7
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Should I URL-encode POST data?
...general answer to your question is that it depends. And you get to decide by specifying what your "Content-Type" is in the HTTP headers.
A value of "application/x-www-form-urlencoded" means that your POST body will need to be URL encoded just like a GET parameter string. A value of "multipart/form...
What is size_t in C?
I am getting confused with size_t in C. I know that it is returned by the sizeof operator. But what exactly is it? Is it a data type?
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Xcode stuck at “Your application is being uploaded”
...veloper.apple.com/membercenter).
Revoke current certificate which is used by your App for signing.
Remove current "iOS distribution provision profile" from Developer
portal.
Regenerate the iOS distribution certificate and add them in developer portal.
Regenerate "iOS distribution provision profi...