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How do RVM and rbenv actually work?
... practical difference between RVM and rbenv is when the version of Ruby is selected.
rbenv:
rbenv adds a shim to the start of your path, a command with the same name as Ruby. When you type ruby at a command line the shim is run instead (because it is also called "ruby" and comes first in the path)...
Commit only part of a file in Git
... the file
d do not stage this hunk or any of the later hunks in the file
g select a hunk to go to
/ search for a hunk matching the given regex
j leave this hunk undecided, see next undecided hunk
J leave this hunk undecided, see next hunk
k leave this hunk undecided, see previous undecided hunk
K le...
Android Studio quick documentation always “fetching documentation”
...ndroid Studio (any os)
Then, in File -> Invalidate Caches / Restart… select Invalidate, and retry using Quick Documentation. It should display instantly. If it doesn't, select Invalidate and Restart, and you should be good to go.
...
disable nganimate for some elements
...ng-show , etc, are affected by that, I want to leverage ngAnimate for some selected elements.
For performance and some bugs in elements that shows and hide very speedy.
...
Will #if RELEASE work like #if DEBUG does in C#?
...nstant defined for release mode. Check your project settings under build.
Selecting [Define DEBUG constant] under Project -> Build is like including #define DEBUG at the beginning of every file.
If you want to define a RELEASE constant for the release configuration go to:
Project Properties ...
How to determine whether code is running in DEBUG / RELEASE build?
...processor Macros' for debug to ensure that DEBUG is being set - do this by selecting the project and clicking on the build settings tab. Search for DEBUG and look to see if indeed DEBUG is being set.
Pay attention though. You may see DEBUG changed to another variable name such as DEBUG_MODE.
th...
how do I use UIScrollView in Interface Builder?
...tion to configure the UIScrollView's contentSize from Interface Builder:
Select the UIScrollView in the Storyboard scene
Go to the Identity inspector, create a new User Defined Runtime Attribute (click the + button)
Change the attribute Key Path to contentSize
Change the attribute Type to Size
Now...
jQuery: fire click() before blur() event
...opdown from stealing focus. The slight advantage is that the value will be selected when the mouse button is released, which is how native select components work. JSFiddle
$('input').on('focus', function() {
$('ul').show();
}).on('blur', function() {
$('ul').hide();
});
$('ul').on('mousedo...
How does a PreparedStatement avoid or prevent SQL injection?
...o in detail.
Compilation Phase:
In this phase, keywords used in query like select, from, where etc are converted into format
understandable by machine.
This is the phase where query is interpreted and corresponding action to be taken is decided.
It also has many other tasks to do, but let's not go ...
Sleep Command in T-SQL?
...(@hours * 60) * 60)) - (@mins * 60)
IF @hours > 23
BEGIN
select @hours = 23
select @mins = 59
select @secs = 59
-- 'maximum wait time is 23 hours, 59 minutes and 59 seconds.'
END
declare @sql nvarchar(24) = 'WAITFOR DELAY '+char(39)+cast(@hours as nvarchar(2))...