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How to explain callbacks in plain english? How are they different from calling one function from ano
...n the call-back-function for further processing. example: func1(a, callback_func){ v = a + 1} and there is predefined call back function: callback_func(v){return v+1;} this will increase a by 2, so if you pass argument of integer 4 in "a" parameter, the callback_funct will return 6 as result. Read t...
What is the difference between SAX and DOM?
...rser,but use 9g memory when use DOM parser.
– zhiyuan_
Nov 2 '18 at 3:55
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show 1 more comment
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Single Page Application: advantages and disadvantages [closed]
...hy maintain state is more comphortable with SPA?
– VB_
Feb 18 '14 at 19:13
4
You cannot easily in...
How can I record a Video in my Android App.?
...r.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
...
Difference between CouchDB and Couchbase
...base Server:
no RESTful API (only for views, not for CRUD operations)
no _changes feed
no peer-to-peer replication
no CouchApps
no Futon (there is a different administration interface available)
no document IDs
no notion of databases (there are only buckets)
no replication between a CouchDB databa...
Xamarin 2.0 vs Appcelerator Titanium vs PhoneGap [duplicate]
...
References and links
http://www.theregister.co.uk/Print/2013/02/25/cross_platform_abstraction/
http://kevinwhinnery.com/post/22764624253/comparing-titanium-and-phonegap
http://forums.xamarin.com/discussion/1003/your-opinion-about-several-crossplatform-frameworks#Comment_3334
http://azdevelop.azur...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...z = {**x, **y}
In Python 2, (or 3.4 or lower) write a function:
def merge_two_dicts(x, y):
z = x.copy() # start with x's keys and values
z.update(y) # modifies z with y's keys and values & returns None
return z
and now:
z = merge_two_dicts(x, y)
In Python 3.9.0a4 or greater...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...ing, and reduction rules, as usual in C-H. See: en.wikipedia.org/wiki/Modal_logic and cs.cmu.edu/~fp/papers/mscs00.pdf
– RD1
Jul 30 '10 at 11:13
2
...
How does Java handle integer underflows and overflows and how would you check for it?
...int left, int right) {
if (right < 0 && right != Integer.MIN_VALUE) {
return willSubtractionOverflow(left, -right);
} else {
return (~(left ^ right) & (left ^ (left + right))) < 0;
}
}
public static boolean willSubtractionOverflow(int left, int right) {...
Secure hash and salt for PHP passwords
...This answer was written in 2008.
Since then, PHP has given us password_hash and password_verify and, since their introduction, they are the recommended password hashing & checking method.
The theory of the answer is still a good read though.
TL;DR
Don'ts
Don't limit what character...