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How to configure postgresql for the first time?
...to the host operating system. This is a good thing. This normally means in order to log in as postgres which is the PostgreSQL equivalent of SQL Server's SA, you have to have write-access to the underlying data files. And, that means that you could normally wreck havoc anyway.
By keeping this disabl...
What's an object file in C?
...s a linker to see what symbols are in it as well as symbols it requires in order to work. (For reference, "symbols" are basically names of global objects, functions, etc.)
A linker takes all these object files and combines them to form one executable (assuming that it can, ie: that there aren't an...
Controlling fps with requestAnimationFrame?
... for frame here
}
And to stop the loop:
clearInterval(rememberMe);
In order to reduce frame rate when the tab gets blurred you can add a factor like this:
var isFocus = 1;
var FPS = 25;
function loop() {
setTimeout(loop, 1000 / (isFocus * FPS)); /// note the change here
... code for ...
What is JSONP, and why was it created?
...ave to use script HTML tags, the ones you usually use to load js files, in order for js to get data from another domain. Sounds weird?
Thing is - turns out script tags can be used in a fashion similar to XMLHttpRequest! Check this out:
script = document.createElement('script');
script.type = 'text...
How to copy Java Collections list
...low copy of a within b. All elements will exist within b in the exact same order that they were within a (assuming it had an order).
Similarly, calling
// note: instantiating with a.size() gives `b` enough capacity to hold everything
List<String> b = new ArrayList<String>(a.size());
Co...
C# Iterating through an enum? (Indexing a System.Array)
...]);
}
But, can you be sure that GetValues returns the values in the same order as GetNames returns the names ?
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How can I sort arrays and data in PHP?
...az'];
}
}
For those familiar, this is equivalent to an SQL query with ORDER BY foo, baz.
Also see this very neat shorthand version and how to create such a comparison function dynamically for an arbitrary number of keys.
Sorting into a manual, static order
If you want to sort elements into a "m...
How can I have grep not print out 'No such file or directory' errors?
...
@sbhatla the parenthesis create an order of operations for the find command. stackoverflow.com/questions/24338777/…
– Choylton B. Higginbottom
Sep 25 '18 at 19:09
...
How to get image height and width using java?
...56) - 2649ms, 68ms
It's obvious that some methods load the whole file in order to get dimensions while others get by just reading some header information from the image. I think these numbers may be useful when application performance is critical.
Thank you everyone for the contribution to this t...
What is a typedef enum in Objective-C?
... type 'enum tagname'
tagname x; // ERROR in C/Objective-C, OK in C++
In order to avoid having to use the enum keyword everywhere, a typedef can be created:
enum tagname { ... };
typedef enum tagname tagname; // declare 'tagname' as a typedef for 'enum tagname'
This can be simplified into one ...