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Inspect element that only appear when other element is mouse overed/entered
...g over the button
Press F8 to freeze the page
Switch to the Elements panel and use the magnifying glass icon in the top left to select the tooltip
If the tooltip shows up because of CSS, here's what you can do in that case:
Step-by-step:
Open the DevTools
Select the triggering element in the d...
How to collapse all methods in Xcode?
...
As of Xcode 4 it seems to have changed.
command-alt-shift-left arrow will do the trick...
To fold/unfold current methods or if structures use:
Fold: command-alt-left arrow
Unfold: command-alt-right arrow
...
I don't understand -Wl,-rpath -Wl,
...Wl:
gcc -Wl,aaa -Wl,bbb -Wl,ccc
Note that there is no comma between aaa and the second -Wl.
Or, in your case, -Wl,-rpath -Wl,..
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How do I declare a 2d array in C++ using new?
... rowCount; ++i)
a[i] = new int[colCount];
The above, for colCount= 5 and rowCount = 4, would produce the following:
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How to suppress specific MSBuild warning
...able specific MSBuild warning (e.g. MSB3253) when running MSBuild from command line? My build script calls msbuild.exe much the following way:
...
How to iterate over the keys and values in an object in CoffeeScript?
...ld not initialise arr as arr = [], you should use arr = {}. In Javascript (and Coffeescript) arrays have numeric indices. Objects behave like associative arrays/dicts.
– Morgan Harris
Mar 18 '13 at 3:55
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How to keep/exclude a particular package path when using proguard?
...nfiguration keeps the names of all public classes in the specified package and its subpackages:
-keep public class com.myapp.customcomponents.**
The following configuration keeps the names of all public/protected classes/fields/methods in the specified package and its subpackages:
-keep public c...
Rails 4 - Strong Parameters - Nested Objects
...(:name, :groundtruth => [:type, :coordinates => []])
On the other hand if you want nested of multiple objects then you wrap it inside a hash… like this
params.require(:foo).permit(:bar, {:baz => [:x, :y]})
Rails actually have pretty good documentation on this: http://api.rubyonrail...
How to use Active Support core extensions
I have Active Support 3.0.3 installed and Rails 3.0.3 with Ruby 1.8.7.
5 Answers
5
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Sort points in clockwise order?
...e other.
Using it you can construct a less-than relation to compare points and determine the order in which they should appear in the sorted array. But you have to define where is the beginning of that order, I mean what angle will be the starting one (e.g. the positive half of x-axis).
The code fo...