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How to make a variadic macro (variable number of arguments)
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Alex BAlex B
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What do helper and helper_method do?
...s means is doing
# application_controller.rb
helper :all
For Rails > 3.1
# application.rb
config.action_controller.include_all_helpers = true
# This is the default anyway, but worth knowing how to turn it off
makes all helper modules available to all views (at least for all controllers inhe...
Append values to a set in Python
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answered Aug 2 '10 at 22:43
Alex MartelliAlex Martelli
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Maven: best way of linking custom external JAR to my project?
...stalkerstalker
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36
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Access to Modified Closure (2)
...buttons shows "Wilma" four times.
This is because the language spec (ECMA 334 v4, 15.8.4) (before C# 5) defines:
foreach (V v in x) embedded-statement is then expanded to:
{
E e = ((C)(x)).GetEnumerator();
try {
V v;
while (e.MoveNext()) {
v = (V)(T)e.Curre...
Multiple cases in switch statement
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326
There is no syntax in C++ nor C# for the second method you mentioned.
There's nothing wrong ...
Android - Camera preview is sideways
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13
The mCamera.setParameters(parameters); statement crash my app, because the surface dimensions are not a valid preview size for my phone (may...
How to use Git Revert
...$ git add README.md
$ git commit -m "initial commit"
[master (root-commit) 3f7522e] initial commit
1 file changed, 1 insertion(+)
create mode 100644 README.md
$ echo "bad update" > README.md
$ git commit -am "bad update"
[master a1b9870] bad update
1 file changed, 1 insertion(+), 1 deletion(-...
What is the usefulness of PUT and DELETE HTTP request methods?
...source with that URI …
For the full specification visit:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
Since current browsers unfortunately do not support any other verbs than POST and GET in HTML forms, you usually cannot utilize HTTP to it's full extent with them (you can still hij...
git replace local version with remote version
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173
This is the safest solution:
git stash
Now you can do whatever you want without fear of confl...