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Returning a boolean from a Bash function
I want to write a bash function that check if a file has certain properties and returns true or false. Then I can use it in my scripts in the "if". But what should I return?
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Use of “instanceof” in Java [duplicate]
I learned that Java has the instanceof operator. Can you elaborate where it is used and what are its advantages?
4 Answer...
How are software license keys generated?
...cto-standard as an anti-piracy measure. To be honest, this strikes me as (in)Security Through Obscurity , although I really have no idea how license keys are generated. What is a good (secure) example of license key generation? What cryptographic primitive (if any) are they using? Is it a message d...
How can I read command line parameters from an R script?
...ve got a R script for which I'd like to be able to supply several command-line parameters (rather than hardcode parameter values in the code itself). The script runs on Windows.
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How do I tell Git to ignore everything except a subdirectory?
I want to ignore all files in my repository except those that occur in the bin subdirectory. I tried adding the following to my .gitignore :
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How to convert timestamps to dates in Bash?
...ed a shell command or script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
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How to get JS variable to retain value after page refresh? [duplicate]
Is it possible to permanently change a javascript variable? As in, if I set the variable X and make that equal to 1. Then onClick of a button change that variable to 2. How can I get that variable to stay at 2 on refresh of the page?
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How to escape os.system() calls?
When using os.system() it's often necessary to escape filenames and other arguments passed as parameters to commands. How can I do this? Preferably something that would work on multiple operating systems/shells but in particular for bash.
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Trigger 404 in Spring-MVC controller?
How do I get a Spring 3.0 controller to trigger a 404?
14 Answers
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How do I cast a JSON object to a typescript class
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You can't simple cast a plain-old-JavaScript result from an Ajax request into a prototypical JavaScript/TypeScript class instance. There are a number of techniques for doing it, and generally involve copying data. Unless you create an instance of the c...