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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
... saw for DT above. Type example(copy) for more examples using tracemem and comparison to data.frame.
Btw, if you tracemem(DT) then DT[2,b:=600] you'll see one copy reported. That is a copy of the first 10 rows that the print method does. When wrapped with invisible() or when called within a functio...
Invalid URI: The format of the URI could not be determined
...r Uri.
If you have the server name
string server = "http://www.myserver.com";
and have a relative Uri path to append to it, e.g.
string relativePath = "sites/files/images/picture.png"
When creating a Uri from these two I get the "format could not be determined" exception unless I use the con...
Sublime Text 2 - Link with Editor / Show file in sidebar
...
https://github.com/sobstel/SyncedSideBar
You can install this via the Package Control utility (although it doesn't mention it on the github page).
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What is “incremental linking”?
... linker to update the existing exe/dll when you make a small change and re-compile.
So, incremental linking just makes it faster to compile and link your project.
The only runtime effect it might have is that it may make your exe/dll slightly bigger and slower, as decribed here:
http://msdn.micro...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
...arr) => {
let sorted_arr = arr.slice().sort(); // You can define the comparing function here.
// JS by default uses a crappy string compare.
// (we use slice to clone the array so the
// original array won't be modified)
let results = [];
for (let i = 0; i < sorted_arr.lengt...
What is the difference between JDK dynamic proxy and CGLib?
...javassist) can create a proxy by subclassing. In this scenario the proxy becomes a subclass of the target class. No need for interfaces.
So Java Dynamic proxies can proxy: public class Foo implements iFoo where CGLIB can proxy: public class Foo
EDIT:
I should mention that because javassist and CG...
Resize HTML5 canvas to fit window
... hidden" to the style of the html and body elements. See thefutureoftheweb.com/blog/100-percent-height-interface
– Denis Washington
Mar 16 '12 at 7:45
18
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C# Regex for Guid
...ED42-11CE-BACD-00AA0057B223)
Update 1
@NonStatic makes the point in the comments that the above regex will match false positives which have a wrong closing delimiter.
This can be avoided by regex conditionals which are broadly supported.
Conditionals are supported by the JGsoft engine, Perl, PC...
Can I mix MySQL APIs in PHP?
...sqli together. They are separate APIs and the resources they create are incompatible with one another.
There is a mysqli_close, though.
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