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How to find unused/dead code in java projects [closed]
...anguage which could do MUCH better. With a staticly typed language (aside from reflection) you can know for sure exactly which methods are used and which are not, this is one of the biggest advantages of a statically typed language and you should use it rather than the fallable method as described ...
How to cast an Object to an int
...that this object is an Integer :
int i = (Integer) object;
Or, starting from Java 7, you can equivalently write:
int i = (int) object;
Beware, it can throw a ClassCastException if your object isn't an Integer and a NullPointerException if your object is null.
This way you assume that your Obj...
Determining type of an object in ruby
...erm in the Ruby world, is to call object.class.
Since classes can inherit from other classes, if you want to determine if an object is "of a particular type" you might call object.is_a?(ClassName) to see if object is of type ClassName or derived from it.
Normally type checking is not done in Ruby,...
Make HTML5 video poster be same size as video itself
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I had on-play background resize on mobiles. From other questions/answers here (e.g. stackoverflow.com/questions/18229974/…) seems the problem is duplication of images (the player css background and the video element poster). This fix worked.
– p...
How do I mock a service that returns promise in AngularJS Jasmine unit test?
... "makeRemoteCallReturningPromise").and.returnValue($q.when({}));
(copied from comments, thanks to ccnokes)
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Webfont Smoothing and Antialiasing in Firefox and Opera
...ell, Firefox does not support something like that.
In the reference page from Mozilla specifies font-smooth as CSS property controls the application of anti-aliasing when fonts are rendered, but this property has been removed from this specification and is currently not on the standard track.
Thi...
What does bundle exec rake mean?
... command to execute a script in the context of the current bundle (the one from your directory's Gemfile). rake db:migrate is the script where db is the namespace and migrate is the task name defined.
So bundle exec rake db:migrate executes the rake script with the command db:migrate in the context...
How to get a list of installed Jenkins plugins with name and version pair
...th suggestion above, wrapped with a curl request and some pruning of built from source plugins we use this approach to generate the plugins.txt for our docker image as mentioned by @ErikEnglund above echo 'script=Jenkins.instance.pluginManager.plugins.each{ plugin -> println ("${plugin.getShor...
What is the difference between “px”, “dip”, “dp” and “sp”?
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From the Android Developer Documentation:
px
Pixels - corresponds to actual pixels on the screen.
in
Inches - based on the physical size of the screen.
1 Inch = 2.54 centimeters
mm
Millimeters - based on ...
Standardize data columns in R
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@weber85, it is a "pipe" operator (from functional programming). Instead of writing f(g(x)) it would look nicer if one writes x %>% g %>% f. In other words, dat %>% mutate_each_(funs(scale),vars=c("y","z")) is just mutate_each_(dat,funs(scale),vars=c(...