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rbenv not changing ruby version
...ME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"
NOTE:
Make sure it's the last setting in your ~/.bash_profile . I ran into an issue where I installed a program that updated my .bash_profile and reset PATH.
Finally, make sure your $HOME folder doesn't have a .ruby-version file that you may have created ...
How do I combine a background-image and CSS3 gradient on the same element?
...o gradients.
See notes for stacking images only IE < 9 below.
Line 1 sets a flat background color.
Line 2 sets the background image fallback.
The final line sets a background image and gradient for browsers that can handle them.
Line 3 is for all relatively modern browsers.
Nearly all cu...
Finding out whether a string is numeric or not
...mited precision of attempting to parse the string as a number:
NSCharacterSet* notDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
if ([newString rangeOfCharacterFromSet:notDigits].location == NSNotFound)
{
// newString consists only of the digits 0 through 9
}
See +[NSCharac...
How to convert a set to a list in python?
I am trying to convert a set to a list in Python 2.6. I'm using this syntax:
9 Answers
...
Find Oracle JDBC driver in Maven repository
...
@Victor - where do I locate these lines? in settings.xml?
– Dejell
Jul 14 '11 at 7:51
1
...
Is it possible to get the non-enumerable inherited property names of an object?
..."hasOwnProperty", "isPrototypeOf", "valueOf", "__defineGetter__", "__defineSetter__", "__lookupGetter__", "propertyIsEnumerable", "__lookupSetter__"]
Update: Refactored the code a bit (added spaces, and curly braces, and improved the function name):
function getAllPropertyNames( obj ) {
var...
What is the difference between UNION and UNION ALL?
... 'foo' AS bar
Result:
+-----+
| bar |
+-----+
| foo |
+-----+
1 row in set (0.00 sec)
UNION ALL example:
SELECT 'foo' AS bar UNION ALL SELECT 'foo' AS bar
Result:
+-----+
| bar |
+-----+
| foo |
| foo |
+-----+
2 rows in set (0.00 sec)
...
How do I Sort a Multidimensional Array in PHP [duplicate]
... be reversed -- individually for each column.
It's extensible: if the data set contains columns that cannot be compared in a "dumb" manner (e.g. date strings) you can also specify how to convert these items to a value that can be directly compared (e.g. a DateTime instance).
It's associative if you ...
How to set warning level in CMake?
How to set the warning level for a project (not the whole solution) using CMake ? Should work on Visual Studio and GCC .
...
ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
... grayed, 等等）
l Item的LPARAM值，就是你使用CListCtrl::SetItemData所设的那个值
上述所有的信息对你来说可能都很重要，这取决于你想实现什么效果，但最经常用到的就是“绘画段”、“绘画ＤＣ”、“Item Index”、“LPARAM”这...