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Is there a Java standard “both null or equal” static method?
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With Java 7 you can now directly do a null safe equals:
Objects.equals(x, y)
(The Jakarta Commons library ObjectUtils.equals() has become obsolete with Java 7)
share
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How to get key names from JSON using jq
... replaced spaces with _ which resolved the issue. Thank you very much! but now one more problem. : ( I am getting different orders when i get keys alone and when i get values alone : (
– Ezhilan Mahalingam
Apr 16 '14 at 20:13
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Rails 4 image-path, image-url and asset-url no longer work in SCSS files
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Now this is how you write an answer. Each scenario. Predicting the "what ifs", no loose ends. A mark of someone who has "seen combat" (really worked through the problem).
– ahnbizcad
Nov...
What exactly does += do in python?
I need to know what += does in python. It's that simple. I also would appreciate links to definitions of other short hand tools in python.
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How would you go about parsing Markdown? [closed]
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The only markdown implementation I know of, that uses an actual parser, is Jon MacFarleane’s peg-markdown. Its parser is based on a Parsing Expression Grammar parser generator called peg.
EDIT: Mauricio Fernandez recently released his Simple Markup Markdown ...
Why are my PowerShell scripts not running?
...ing Windows 10 and Windows 2012 R2 without issue.
Here is what I am using now. This keeps me from accidentally running the script by clicking on it. When I run it in the scheduler I add one argument: "scheduler" and that bypasses the prompt.
This also pauses the window at the end so I can see the ...
Capturing mobile phone traffic on Wireshark
...ialog box appears, click on the line rvi0 then press the Start button.
Now you will see all network traffic on the iOS device. It can be pretty overwhelming. A couple of pointers:
don't use iOS with a VPN, you don't be able to make sense of the encrypted traffic
use simple filters to focus o...
How do you run a SQL Server query from PowerShell?
...on.Close()
$dataSet.Tables
}
I have been using this so long I don't know who wrote which parts. This was distilled from others' examples, but simplified to be clear and just what is needed without extra dependencies or features.
I use and share this often enough that I have turned this into a ...
Rails: call another controller action from a controller
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I know I should not do that, but this is not part of my application it's just for testing and evaluating my application.
– ddayan
Apr 24 '11 at 22:37
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Recursive search and replace in text files on Mac and Linux
...uld upvote this every time I come back to it and use it. It'd be at +15 by now, easy.
– Droogans
Feb 26 '15 at 15:35
F...