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versionCode vs versionName in Android Manifest
...droid:versionCode
An internal version number. This number is used only to determine whether one version is more recent than another, with higher numbers indicating more recent versions. This is not the version number shown to users; that number is set by the versionName attribute.
The value mu...
Easy way to dismiss keyboard?
...many table cells in my table, and I was wondering if there's an easier way to dismiss the keyboard without having to loop through all my controls and resigning them all as the first responder. I guess the question is.. How would I get the current first responder to the keyboard?
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Converting strings to floats in a DataFrame
How to covert a DataFrame column containing strings and NaN values to floats. And there is another column whose values are strings and floats; how to convert this entire column to floats.
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What new capabilities do user-defined literals add to C++?
...g literals ( int , hex , string , float ) so that any type will be able to have a literal presentation.
12 Answers
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What's the difference between django OneToOneField and ForeignKey?
What's the difference between Django OneToOneField and ForeignKey ?
9 Answers
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The necessity of hiding the salt for a hash
...ts. The products I work on use something like a user name or phone number to salt the hash. Essentially something that is different for each user but is readily available to us. The other product randomly generates a salt for each user and changes each time the user changes the password. The sal...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
...foo = 'bar'; once somewhere in your application doesn't mean you can refer to $foo from everywhere else inside the application. The variable $foo has a certain scope within which it is valid and only code in the same scope has access to the variable.
How is a scope defined in PHP?
Very simple: PHP...
Co-variant array conversion from x to y may cause run-time exception
... list of LinkLabel s ( IList<LinkLabel> ). I later add LinkLabel s to this list and add those labels to a FlowLayoutPanel like follows:
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Aspect Oriented Programming vs. Object-Oriented Programming
...vs", it is "Aspect Oriented Programming with Object Oriented Programming".
To me AOP is some kind of "meta-programming". Everything that AOP does could also be done without it by just adding more code. AOP just saves you writing this code.
Wikipedia has one of the best examples for this meta-program...
How do JavaScript closures work?
How would you explain JavaScript closures to someone with a knowledge of the concepts they consist of (for example functions, variables and the like), but does not understand closures themselves?
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