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In php, is 0 treated as empty?
...ues you want to regard as true. Just compare the differences between isset and empty and choose the right combination for the right situation.
– deceze♦
Feb 8 '10 at 9:25
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When to use NSInteger vs. int
...nteger/NSUInteger are defined as *dynamic typedef*s to one of these types, and they are defined like this:
#if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
typedef long NSInteger;
typedef unsigned long NSUInteger;
#else
typedef int NSInteger;
typedef ...
How to make Git pull use rebase by default for all my repositories?
... For finer grained control, this can also be set to never, local or remote and can be set per repository or globally. See git config --help for further details.
3. branch.<branchname>.rebase
Setting this to true means that that particular branch will always pull from its upstream via rebasin...
Python-equivalent of short-form “if” in C++ [duplicate]
...ython 2.5+), a 1-to-1 equivalent of your version might be:
a = (b == True and "123" or "456" )
... which in python should be shortened to:
a = b is True and "123" or "456"
... or if you simply want to test the truthfulness of b's value in general...
a = b and "123" or "456"
? : can literall...
php Replacing multiple spaces with a single space [duplicate]
...
Use preg_replace() and instead of [ \t\n\r] use \s:
$output = preg_replace('!\s+!', ' ', $input);
From Regular Expression Basic Syntax Reference:
\d, \w and \s
Shorthand character classes matching
digits, word characters (letters,...
Get boolean from database using Android and SQLite
How can I obtain the value of a boolean field in an SQLite database on Android?
10 Answers
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Remove and Replace Printed items [duplicate]
...ems you have printed in Python - not from the Python GUI, but from the command prompt.
e.g.
3 Answers
...
How do I combine two data-frames based on two columns? [duplicate]
I know I can use the plyr and its friends to combine dataframes, and merge as well, but so far I don't know how to merge two dataframes with multiple columns based on 2 columns?
...
How can we access context of an application in Robolectric?
...
Update.
Just use for version 1.x and 2.x:
Robolectric.application;
And for version 3.x:
RuntimeEnvironment.application;
And for version 4.x:
add to your build.gradle file:
testImplementation 'androidx.test:core:1.0.0'
retrieve the context with:
Ap...
What is the .idea folder?
...each newly
created project.
Check this documentation for the IDE settings and here is their recommendation on Source Control and an example .gitignore file.
Note: If you are using git or some version control system, you might want to set this folder "ignore".
Example - for git, add this directory t...