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What is the use of the pipe symbol in YAML?
...indented 4 from it. Somewhat surprisingly the final: | mapping is not considered a block element even though its value is multi-lined. It sort of makes sense if you think about it -- it's still just a 'one-liner' "key: value" mapping. The value just happens to be using a special syntax for multi-...
How can I get a list of build targets in Ant?
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Understanding keystore, certificates and alias
...unique alias. In brief:
Keystore entry = private + public key
pair = identified by an alias
The keystore protects each private key with its individual password, and also protects the integrity of the entire keystore with a (possibly different) password.
For instance, when you sign an Androi...
inserting characters at the start and end of a string
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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
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扩展App Inventor：具...
Printing newlines with print() in R
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How do I flag a method as deprecated in Objective-C 2.0?
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Deprecation Syntax
Syntax is provided to mark methods as deprecated:
@interface SomeClass
-method __attribute__((deprecated));
@end
or:
#include <AvailabilityMacros.h>
@interface SomeClass
-method DEPRECATED_ATTRIBUTE; // or some other deployment-...
What to do with branch after merge
...lly, git will warn you (and refuse to delete the branch) if it thinks you didn't fully merge it yet. If you forcefully delete a branch (with git branch -D) which is not completely merged yet, you have to do some tricks to get the unmerged commits back though (see below).
There are some reasons to k...
What format string do I use for milliseconds in date strings on iPhone?
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The Date Format Patterns guide suggests that "S" is the format specifier for fractions of seconds.
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Responsive website zoomed out to full width on mobile
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Add this to your HTML head..
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
This tells smaller device browsers how to scale the page. You can read more about this here: https://developer.apple.com/library/content/documentation/AppleApplicatio...