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Explanation of JSONB introduced by PostgreSQL
...storage «as is»
jsonb: no whitespaces
jsonb: no duplicate keys, last key win
jsonb: keys are sorted
More in speech video and slide show presentation by jsonb developers. Also they introduced JsQuery, pg.extension provides powerful jsonb query language
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SVG gradient using CSS
...css and change the stop-color for each of those stops using plain classes.
Win!
Some benefits of using classes instead of :nth-child is that it'll not be affected if you reorder your stops. Also, it makes the intent of each class clear - you'll be left wondering whether you needed a blue color on ...
Why sizeof int is wrong, while sizeof(int) is right?
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answered Oct 29 '12 at 11:17
Steve JessopSteve Jessop
251k3131 gold badges420420 silver badges659659 bronze badges
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Can you change what a symlink points to after it is created?
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edited Aug 11 '17 at 7:18
Ben Amos
1,3521111 silver badges1717 bronze badges
answered Sep...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...They're the same!". Unfortunately you can't guarantee that.
Take the following example:
function Array() {
this.is = 'SPARTA';
}
var a = new Array();
var b = [];
alert(a.is); // => 'SPARTA'
alert(b.is); // => undefined
a.push('Woa'); // => TypeError: a.push is not a function
b.pus...
What should my Objective-C singleton look like? [closed]
...tances of the singleton and attempt to CAS it into position. Whichever one wins the CAS returns immediately, whichever one loses releases the instance it just allocated and returns the (now set) sharedInstance. The single OSAtomicCompareAndSwapPtrBarrier acts as both a write barrier for the setting ...
How to see which plugins are making Vim slow?
... wondering, this doesn't exist in all vim/gvim distros. Doesn't in a stock Win Gvim 7.4 over here (though it is documented in viminfo)
– thynctank
Aug 26 '14 at 16:28
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Download file from web in Python 3
... @Corey: Right from the docs: "21.6.24. Legacy interface The following functions and classes are ported from the Python 2 module urllib (as opposed to urllib2). They might become deprecated at some point in the future." ...and I agree on Oleh's "not sure why"
– cfi
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Set folder browser dialog start location
...lder.DesktopDirectory)
"If the SelectedPath property is set before showing the dialog box, the folder with this path will be the selected folder, as long as SelectedPath is set to an absolute path that is a subfolder of RootFolder (or more accurately, points to a subfolder of the shell namespac...
Finding the path of the program that will execute from the command line in Windows
...gram on the system that's also called X.EXE but is installed in folder c:\windows\ .
3 Answers
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