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Determining type of an object in ruby
...rmally type checking is not done in Ruby, but instead objects are assessed based on their ability to respond to particular methods, commonly called "Duck typing". In other words, if it responds to the methods you want, there's no reason to be particular about the type.
For example, object.is_a?(Str...
Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT
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Based on KitKat docs (developer.android.com/about/versions/…) this may not be what the OP needs unless he does intent to use/edit documents that are owned by the other application(s). If the OP wants a copy or to do things...
Get user profile picture by Id
I'm now working on a web application which is mostly based of facebook graph api.
I hold some data about users - actually , the possible public data available - such as name and id.
I also know that a profile picture is a part of the public data, and I wondered how I'll be able to get a direct link ...
How many spaces will Java String.trim() remove?
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Based on the Java docs here, the .trim() replaces '\u0020' which is commonly known as whitespace.
But take note, the '\u00A0' (Unicode NO-BREAK SPACE   ) is also seen as a whitespace, and .trim() will NOT remove th...
Unable to show a Git tree in terminal
...ty=oneline --abbrev-commit | tig // Masi needed this
The article text-based graph from Git-ready contains other options:
git log --graph --pretty=oneline --abbrev-commit
Regarding the article you mention, I would go with Pod's answer: ad-hoc hand-made output.
Jakub Narębski mentions in...
How to change time in DateTime?
...on-ready. Its ZonedDateTime type is made "aware" by linking it to a tz database entry.
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What is a Manifest in Scala and when do you need it?
...tail.
One common use of Manifests is to have your code behave differently based on the static type of a collection. For example, what if you wanted to treat a List[String] differently from other types of a List:
def foo[T](x: List[T])(implicit m: Manifest[T]) = {
if (m <:< manifest[Str...
Check for installed packages before running install.packages() [duplicate]
...1) system.file does not look in all .libPath() locations, and (2) my conda based R installation alters the .libPaths in some way.
– Aditya
Apr 11 '19 at 14:55
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In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
...nd keep them up to date for different targets etc. Also, in our mixed codebase, we didn't want to make remember to set our flags appropriately all the time for each language.
For ours, we declared a file in ObjC
PreProcessorMacros.h
extern BOOL const DEBUG_BUILD;
In the .m
PreProcessorMacros....
Rename a class in Xcode: Refactor… is grayed out (disabled). Why?
...ctor was disabled because the Xcode project I had opened was referencing a Base SDK that was missing. Edit Project Settings and in the Build tab set the Base SDK to one that you have (like for me this was iOS 4.2). This enabled Refactor for me.
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