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Determine path of the executing script
...passed by Rscript to the actual R interpreter and search them for --file=. If your script was launched from the path or if it was launched with a full path, the script.name below will start with a '/'. Otherwise, it must be relative to the cwd and you can concat the two paths to get the full path.
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Difference between HashSet and HashMap?
...from the fact that HashSet does not allow duplicate values, what is the difference between HashMap and HashSet ?
19 An...
How to use support FileProvider for sharing content to other apps?
...nually grant and revoke permissions(at runtime) for other apps to read specific Uri. Use Context.grantUriPermission and Context.revokeUriPermission methods.
For example:
//grant permision for app with package "packegeName", eg. before starting other app via intent
context.grantUriPermission(packa...
What is the default access modifier in Java? [duplicate]
What is the default access modifier for a method or an instance variable if I do not state it explicitly?
13 Answers
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Remove CSS “top” and “left” attributes with jQuery
...y removing the style attribute:
$('.map').removeAttr('style');
However, if you're using other jQuery UI components, those may require inline styles that you don't want to be removed, so proceed with caution there.
share
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Why are Objective-C delegates usually given the property assign instead of retain?
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A creates B
A sets itself as B's delegate
…
A is released by its owner
If B had retained A, A wouldn't be released, as B owns A, thus A's dealloc would never get called, causing both A and B to leak.
You shouldn't worry about A going away because it owns B and thus gets rid of it in dealloc.
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How to calculate percentage with a SQL statement
... the table will be scanned twice. Also the query will not look that simple if there is more than one table referenced.
– Alex Aza
May 19 '11 at 21:15
14
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Where can I find the TypeScript version installed in Visual Studio?
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If you only have TypeScript installed for Visual Studio then:
Start the Visual Studio Command Prompt
Type tsc -v and hit Enter
Visual Studio 2017 versions 15.3 and above bind the TypeScript version to individual project...
How to replace part of string by position?
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What's the point of using StringBuilder here, if you're calling Remove and Insert the same way as V4Vendetta, but he is doing it directly on the string? Seems redundant code.
– metabuddy
Nov 2 '18 at 5:35
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When to use nested classes and classes nested in modules?
...n’t have that behaviour.
In Ruby,
class Car
class Wheel
end
end
differs from
class Car
end
class Wheel
end
only in the name of the class Wheel vs. Car::Wheel. This difference in name can make explicit to programmers that the Car::Wheel class can only represent a car wheel, as opposed t...