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Swift: Pass array by reference?
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@Boon Array is still semantically copied/passed-by-value, but just optimised to use COW.
– eonil
Oct 14 '14 at 3:38
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Check if an apt-get package is installed and then install it if it's not on Linux
...kage 'certbot' is not installed and no information is available
the file /etc/logrotate.d/certbot is still present in the system after apt remove, but not after --purge.
However, the file /usr/lib/python3/dist-packages/certbot/reporter.py is still present even after --purge.
I don't understand w...
Where are shared preferences stored?
...ces are stored in an xml file in the app data folder, i.e.
/data/data/YOUR_PACKAGE_NAME/shared_prefs/YOUR_PREFS_NAME.xml
or the default preferences at:
/data/data/YOUR_PACKAGE_NAME/shared_prefs/YOUR_PACKAGE_NAME_preferences.xml
SharedPreferences added during runtime are not stored in the Eclip...
How to interpret API documentation function parameters?
...f syntax convention, from Python, man pages, javascript libs (Highcharts), etc.
Breaking down your example from Adobe API
fillPath
([fillColor]
[, mode]
[, opacity]
[, preserveTransparency] [, feather]
[, wholePath] [, antiAlias])
We see that fillPath() (a function) takes optional arguments fillCo...
'Must Override a Superclass Method' Errors after importing a project into Eclipse
Anytime I have to re-import my projects into Eclipse (if I reinstalled Eclipse, or changed the location of the projects), almost all of my overridden methods are not formatted correctly, causing the error:
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How do I run NUnit in debug mode from Visual Studio?
... NUnit set up and a new project within my workspace to test the component. All works well if I load up my unit tests from Nunit (v2.4), but I've got to the point where it would be really useful to run in debug mode and set some break points.
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How to override to_json in Rails?
...t::json.encode. This happens for all types: object, numeric, date, string, etc (see the ActiveSupport code).
ActiveRecord objects behave the same way. There is a default as_json implementation that creates a hash that includes all the model's attributes. You should override as_json in your Model to...
What is Serialization?
...stored in a persistent storage.
Deserialization is the exact opposite - Fetch a stream of bytes from network or persistence storage and convert it back to the Object with the same state.
The thing to understand is how those stream of bytes are interpreted or manipulated so that we get the exact s...
How to get the first line of a file in a bash script?
...er and loader (if it's using shared libraries, which is usually the case), etc.
– Charles Duffy
Aug 1 '17 at 16:17
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jQuery hasAttr checking to see if there is an attribute on an element [duplicate]
...is).attr('name') ) != 'undefined' ) { // ... } since undefined can actually be redefined using a simple: undefined = 1
– Shane Tomlinson
Nov 22 '10 at 12:34
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