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How to install a specific version of a ruby gem?
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please tell me the output of gem sources, if it's empty, add a repo using this command: gem sources -a https://rubygems.org/
– Kokizzu
May 30 '14 at 1:28
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Disable browser 'Save Password' functionality
...ng me a migraine.
Finally, I tried to just have the username and password outside of the form. To my surprise, this worked! It worked on IE6, and current versions of Firefox and Chrome on Linux. I haven't tested it further, but I suspect it works in most if not all browsers (but it wouldn't surp...
Javascript event handler with parameters
...at I've added to the end of my answer to explain the construct you asked about. It's an immediately invoked function expression (IIFE) which is essentially an anonymously declared function that is immediately executed. It's a shortcut for defining a function and then calling it - useful when you w...
Creating java date object from year,month,day
Output is:
6 Answers
6
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In C++, what is a virtual base class?
...ally a diagram showing class inheritance relationships -- not an object layout. The confusing part is that if we do use virtual, then the object layout looks like the diamond; and if we do not use virtual then the object layout looks like a tree structure that contains two As
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JQuery .on() method with multiple event handlers to one selector
Trying to figure out how to use the Jquery .on() method with a specific selector that has multiple events associated with it. I was previously using the .live() method, but not quite sure how to accomplish the same feat with .on(). Please see my code below:
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git discard all changes and pull from upstream
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More help for the rookies out there: git gc cleans up and runs thru some housekeeping. On another note, I have never run git gc. It is nice to run, but not needed.
– Joshua Dance
Jul 8 '14 at 15:34
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Difference between object and class in Scala
...an object to hold methods and values/variables that shall be available without having to first instantiate an instance of some class.
This use is closely related to static members in Java.
object A {
def twice(i: Int): Int = 2*i
}
You can then call above method using A.twice(2).
If twice were ...
Saving vim macros
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Ctrl+r Ctrl+r registerName inputs register content without interpreting them - better than "qp. +1 for in-vim method nevertheless.
– LAFK says Reinstate Monica
May 31 '15 at 17:12
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Difference between const & const volatile
... the hardware - using a cached value from a previous read won't tell you about changes in the hardware state.
A quick example:
unsigned int const volatile *status_reg; // assume these are assigned to point to the
unsigned char const volatile *recv_reg; // correct hardware addresses
#define U...