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Assign output to variable in Bash
... bar of curl? Adding -silent leaves $IP empty...
– Dror
Jul 14 '14 at 8:30
4
@Dror, curl sends it...
windows batch SET inside IF not working
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var2 is set, but the expansion in the line echo %var2% occurs before the block is executed.
At this time var2 is empty.
Therefore the delayedExpansion syntax exists, it uses ! instead of % and it is evaluated at execution time, not parse time.
Please note that in order to use !, the ad...
WKWebView in Interface Builder
...templates in XCode 6 beta are still creating old-style objects (UIWebView for iOS and WebView for OSX). Hopefully Apple will update them for the modern WebKit, but until then, what is the best way to create WKWebViews in Interface Builder? Should I create a basic view (UIView or NSView) and assign...
How to trim white spaces of array values in php
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Excellent. Much simpler than using array_walk or a foreach loop
– Ryan
Nov 19 '11 at 5:33
10
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Difference between attr_accessor and attr_accessible
In Rails, what is the difference between attr_accessor and attr_accessible ? From my understanding, using attr_accessor is used to create getter and setter methods for that variable, so that we can access the variable like Object.variable or Object.variable = some_value .
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How to delete items from a dictionary while iterating over it?
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EDIT:
This answer will not work for Python3 and will give a RuntimeError.
RuntimeError: dictionary changed size during iteration.
This happens because mydict.keys() returns an iterator not a list.
As pointed out in comments simply convert mydict.k...
How to delete shared preferences data from App in Android
How do I delete SharedPreferences data for my application?
24 Answers
24
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Advantages to Using Private Static Methods
...lication, that don't require the use of any instance fields, are there performance or memory advantages to declaring the method as static?
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@Nullable annotation usage
...the method, you should also accept null values.
It also serves as a hint for code analyzers like FindBugs. For example, if such a method dereferences its argument without checking for null first, FindBugs will emit a warning.
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Git push/clone to new server
I'm just learning Git and there is something I can't work out. After creating and using a git repository locally on my Mac, can I push a copy to another server somewhere else? I am behind a firewall so unfortunately I can't run git clone from the other machine.
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