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How does facebook, gmail send the real time notification?
...f the actual content returned from those polls, it's a JSON response, with what appears to be a list of events, and info about them. It's minified though, so is a bit hard to read.
In terms of the actual technology, AJAX is the way to go here, because you can control request timeouts, and many othe...
Convert int to char in java
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My answer is similar to jh314's answer but I'll explain a little deeper.
What you should do in this case is:
int a = 1;
char b = (char)(a + '0');
System.out.println(b);
Here, we used '0' because chars are actually represented by ASCII values. '0' is a char and represented by the value of 48.
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Getting only response header from HTTP POST using curl
...'s a GET, not a POST, but you can do the same thing with a POST - just add whatever option you're already using for POSTing data)
note the - after the -D which indicates that the output "file" is stdout.
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Bootstrap 3 jquery event for active tab change
...value to the target, I'm not getting any alert. Not even an error message. What should I do, in order to bring it outside that loop? I've declared the variable outside the document.ready function.
– SSS
Nov 2 '16 at 12:31
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Xcode iOS project only shows “My Mac 64-bit” but not simulator or device
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None of the suggestions here worked for me, but what did was clicking the project in the sidebar, then under "iOS Application Target", toggle "Devices".
I was set
Why do we not have a virtual constructor in C++?
... complete information. In particular, you
need to know the exact type of what you want to create. Consequently,
a "call to a constructor" cannot be virtual.
The FAQ entry goes on to give the code for a way to achieve this end without a virtual constructor.
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How can I update a single row in a ListView?
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what would happen if i just call getView() on the adapter only if the position is between getFirstVisiblePosition() and getLastVisiblePosition() ? would it work the same? i think it will update the view as usual, right?
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Responsive css background images
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What? Not setting width, height to the container won't show the image at all.
– snow
Nov 11 '16 at 11:54
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Convert string with commas to array
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@Downvoter: Try to describe what is wrong with the answer so that I can demonstrate how you're wrong.
– I Hate Lazy
Nov 7 '12 at 15:59
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How do I programmatically set the value of a select box element using JavaScript?
...r incompatibilities (of course there are :) I'd be very interested to know what they are. That's the sort of thing you usually count on ppk for, but he stubbornly refuses to show up in my searches for this topic.
– philo
May 22 '12 at 17:47
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