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How does facebook, gmail send the real time notification?
..." timeout and to always make this request after the current ends (timeout, error or success).
Long Polling - Client
Here, to keep code short, I will use jQuery:
function pollTask() {
$.ajax({
url: '/api/Polling',
async: true, // by default, it's async, but...
...
Are duplicate keys allowed in the definition of binary search trees?
...cluded. For example, the example algorithms in the MIT Algorithms book usually present examples without duplicates. It is fairly trivial to implement duplicates (either as a list at the node, or in one particular direction.)
Most (that I've seen) specify left children as <= and right children ...
Generic deep diff between two objects
... },
isFunction: function (x) {
return Object.prototype.toString.call(x) === '[object Function]';
},
isArray: function (x) {
return Object.prototype.toString.call(x) === '[object Array]';
},
isDate: function (x) {
return Object.prototype.toString.call(x) === '[ob...
django change default runserver port
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You can't run the development server programmatically, so a custom command won't work unless it calls the shell using something like call. If this solution works for you please make sure to mark it as solved.
– Pablo Albornoz
May 13 '1...
How to filter Android logcat by application? [duplicate]
...V — Verbose (lowest priority)
D — Debug
I — Info
W — Warning
E — Error
F — Fatal
S — Silent (highest priority, on which nothing is ever printed)
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How do I make the return type of a method generic?
...nfigurationManager.AppSettings[settingName];
}
Note - This will throw an error if the cast is not valid(your case). I would not recommend doing this if you are not sure about the type casting, rather go for option 3.
Option 3: Generic with type safety - Create a generic function to handle type con...
Generate a random alphanumeric string in Cocoa
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NSString *uuid = [UUID UUID].UUIDString; will give you error "Use of undeclared identifier UUID", so just a small change in code use NSString *uuid = [NSUUID UUID].UUIDString;
– Abbas Mulani
Oct 27 '16 at 14:50
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Http Basic Authentication in Java using HttpClient?
...hink version 3 is still actively supported).
A 500 status code is a server error, so it might be useful to see what the server says (any clue in the response body you're printing?). Although it might be caused by your client, the server shouldn't fail this way (a 4xx error code would be more appropr...
How to count the number of set bits in a 32-bit integer?
...Hamming Weight', 'popcount' or 'sideways addition'.
The 'best' algorithm really depends on which CPU you are on and what your usage pattern is.
Some CPUs have a single built-in instruction to do it and others have parallel instructions which act on bit vectors. The parallel instructions (like x86's ...
Python division
...-100 and was having problems only to notice that even with no variables at all, this does not evaluate the way I would expect it to:
...