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C++ equivalent of java's instanceof
What is the preferred method to achieve the C++ equivalent of java's instanceof ?
6 Answers
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Get protocol + host name from URL
In my Django app, I need to get the host name from the referrer in request.META.get('HTTP_REFERER') along with its protocol so that from URLs like:
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Cleaning `Inf` values from an R dataframe
In R, I have an operation which creates some Inf values when I transform a dataframe.
8 Answers
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How to search a Git repository by commit message?
I checked some source code into GIT with the commit message "Build 0051".
11 Answers
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converting a .net Func to a .net Expression
Going from a lambda to an Expression is easy using a method call...
9 Answers
9
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Difference in months between two dates
How to calculate the difference in months between two dates in C#?
40 Answers
40
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How do I get a file's directory using the File object?
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In either case, I'd expect file.getParent() (or file.getParentFile()) to give you what you want.
Additionally, if you want to find out whether the original File does exist and is a directory, then exists() and isDirectory() ...
What's the easiest way to install a missing Perl module?
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On Unix:
usually you start cpan in your shell:
# cpan
and type
install Chocolate::Belgian
or in short form:
cpan Chocolate::Belgian
On Windows:
If you're using ActivePerl on Windows, the PPM (Perl Package Manager) has much of the same functionalit...
JavaScript closure inside loops – simple practical example
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Well, the problem is that the variable i, within each of your anonymous functions, is bound to the same variable outside of the function.
ES6 solution: let
ECMAScript 6 (ES6) introduces new let and const keywords that are scoped differently than var-based variables. For ...
Switching a DIV background image with jQuery
I am making an expand/collapse call rates table for the company I work for. I currently have a table with a button under it to expand it, the button says "Expand". It is functional except I need the button to change to "Collapse" when it is clicked and then of course back to "Expand" when it is clic...