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Clojure differences between Ref, Var, Agent, Atom, with examples
...is question, I can reproduce a short snip-it of the motivations for each:
start by watching this video on the notion of Identity and/or studying here.
Refs are for Coordinated Synchronous access to "Many Identities".
Atoms are for Uncoordinated synchronous access to a single Identity.
Agents are ...
Retrieve column names from java.sql.ResultSet
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You may be surprised as me seeing column count starting at 1. You can iterate through column names with for (int i = 1; i <= rsmd.getColumnCount(); i++) String name = rsmd.getColumnName(i);
– Alphaaa
Nov 19 '15 at 7:03
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How to throw a C++ exception
...ception, when you catch "all possible" exceptions types, you should always start the catch clauses with the "most derived" exception type that may be caught. See the example (of what NOT to do):
#include <iostream>
#include <string>
using namespace std;
class MyException : public exce...
Show just the current branch in Git
... Finally, what seems like it should have been there from the start, has been added!
– dtasev
Mar 22 '19 at 11:43
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How and why do I set up a C# build machine? [closed]
...d? If we make nightly builds, should we keep around all the old builds, or start to ditch them after about a week or so?
A: Thats up to you, after so long I move our build artifacts to long term storage or delete them, but all the data which is stored in text files / xml files I keep around, this l...
Git repository broken after computer died
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Start by following the steps suggested in Recovering broken git repository:
check whether .git/refs still contains anything useful
check git reflog and failing that the contents of .git/logs/refs/heads/master or whatever br...
How to delete a module in Android Studio
...the steps in this answer, the project remains in the list, and I have to restart Android Studio to make the project disappear from the list. For whoever experiencing the same thing, please restart Android Studio. :)
– I'm a frog dragon
Aug 2 '13 at 7:15
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Professional jQuery based Combobox control? [closed]
...sability issues with this control, but as a user I don't think I'd know to start typing for the dropdownlist to turn into a textbox.
I much prefer the Combo Dropdown Box, but it still has some features that I'd want and it's still in alpha. The only think I don't like about this other than its bein...
Could not execute editor
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For the GUI version, Vim will not fork and detach from the shell it was started in. ... This option should be used when Vim is executed by a program that will wait for the edit session to finish (e.g. mail).
Well I'm not using a GUI version, that I know of. I'm running git at the bash command l...
How do you do block comments in YAML?
...ments.
From Wikipedia:
Comments begin with the number sign ( # ), can start anywhere on a line, and continue until the end of the line
A comparison with JSON, also from Wikipedia:
The syntax differences are subtle and seldom arise in practice: JSON allows extended charactersets like UTF-3...