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Getting the first character of a string with $str[0]
I want to get the first letter of a string and I've noticed that $str[0] works great. I am just not sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right –...
What is the difference between t.belongs_to and t.references in rails?
What is the difference between t.references and t.belongs_to ?
Why are we having those two different words? It seems to me they do the same thing?
Tried some Google search, but find no explanation.
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Kill some processes by .exe file name
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@AgainMe Process.Kill() sends a kill signal to a process, which will halt its execution wherever it happens to be. This is different from an interrupt signal in that the process will not have a chance to respond and/or clean up from the signal. No more execution will h...
Execute command without keeping it in history [closed]
I want to execute some commands but don't want to store them in the command history. So that nobody will be able to search it in the .bash_history file.
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Getting request payload from POST request in Java servlet
I have a javascript library that is sending a POST request to my Java servlet, but in the doPost method, I can't seem to get the contents of the request payload. In chrome Developer Tools, all the content is in the Request Payload section in the headers tab, and the content is there, and I know th...
Set up adb on Mac OS X
I spent quite sometime figuring how to set up adb on Mac, so I figure writing how to set it up might be useful to some people. adb is the command line tool to install and run android apps on your phone/emulator
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Make header and footer files to be included in multiple html pages
I want to create common header and footer pages that are included on several html pages.
11 Answers
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What are the best Haskell libraries to operationalize a program? [closed]
If I'm going to put a program into production, there are several things I need that program to do in order to consider it "operationalized" – that is, running and maintainable in a measurable and verifiable way by both engineers and operations staff. For my purposes, an operationalized program mus...
How can I echo a newline in a batch file?
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the example doesn't need a period, but you do need one to echo a blank empty line: echo. && echo hello && echo. && echo world
– matt wilkie
Jun 16 '11 at 22:37
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How do I know which version of Javascript I'm using?
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Wikipedia (or rather, the community on Wikipedia) keeps a pretty good up-to-date list here.
Most browsers are on 1.5 (though they have features of later versions)
Mozilla progresses with every dot release (they maintain the standard so that's not surprising)
Firefox 4 is on JavaScript 1.8.5
Th...