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Getting the last element of a list
...stpones the inevitable "list index out of range" - and that's what should happen when attempting to get an element from an empty list. For Strings astr[-1:] could be a valid approach since it returns the same type as astr[-1], but I don't think the ':' helps to deal with empty lists (and the questio...
Custom Cell Row Height setting in storyboard is not responding
...etting inside the "size inspector" of the cell in question. When I run the app on my iPhone the cell has the default size set from the "row size" in the table view.
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How to ignore user's time zone and force Date() use specific time zone
In an JS app, I receive timestamp (eq. 1270544790922 ) from server (Ajax).
7 Answers
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What is a practical use for a closure in JavaScript?
...updateClickCount()">click me</button>
Now there could be many approaches like:
1) You could use a global variable, and a function to increase the counter:
var counter = 0;
function updateClickCount() {
++counter;
// do something with counter
}
But, the pitfall is that any s...
Cooler ASCII Spinners? [closed]
In a console app, an ascii spinner can be used, like the GUI wait cursor, to indicate that work is being done. A common spinner cycles through these 4 characters: '|', '/', '-', '\'
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When do items in HTML5 local storage expire?
.../Web/API/Window/localStorage
Of course, it's possible that something your application stores on the client may not be there later. The user can explicitly get rid of local storage, or the browser may run into space considerations. It's good to program defensively. Generally however things remain "...
Why does SSL handshake give 'Could not generate DH keypair' exception?
..., there is JDK-8072452 - Remove the maximum prime size of DH Keys; the fix appears to be for 9.
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node and Error: EMFILE, too many open files
...test the number of files that were opened after doing various events in my app.
lsof -i -n -P | grep "8465" | wc -l
# lsof -i -n -P | grep "nodejs.*8465" | wc -l
28
# lsof -i -n -P | grep "nodejs.*8465" | wc -l
31
# lsof -i -n -P | grep "nodejs.*8465" | wc -l
34
What is your process limit?
ulimit ...
Automatically resize jQuery UI dialog to the width of the content loaded by ajax
...ation and examples on this. I've got a number of jQuery UI dialogs in my application attached to divs that are loaded with .ajax() calls. They all use the same setup call:
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What are the differences between virtual memory and physical memory?
...sion of having infinite memory available on their system.
Virtual memory mappings are made to correspond to actual physical addresses. The operating system creates and deals with these mappings - utilizing the page table, among other data structures to maintain the mappings. Virtual memory mappings...