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Using bitwise OR 0 to floor a number
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How does it work? Our theory was that using such an operator casts the
number to an integer, thus removing the fractional part
All bitwise operations except unsigned right shift, >>>, work on signed 32-bit integers. So using bi...
Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
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First, let's see what this does:
Arrays.asList(ia)
It takes an array ia and creates a wrapper that implements List<Integer>, which makes the original array available as a list. Nothing is copied and all, only a single wrapper object is created. Operations on the list wrapper...
Get characters after last / in url
I want to get the characters after the last / in an url like http://www.vimeo.com/1234567
8 Answers
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The command rbenv install is missing
...s available in the Ports Collection, it can be install both as a binary package or build from the port:
# Using pkgng rbenv will be installed
pkg install ruby-build
# Building ruby-build form Ports will install rbenv only if the RBENV option is set
cd /usr/ports/devel/ruby-build
make install
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Make Bootstrap Popover Appear/Disappear on Hover instead of Click
...lding a website with Bootstrap's Popover and I can't figure out how to make the popover appear on hover instead of click.
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Diff output from two programs without temporary files
...e name. Bash pipes the program's output to a pipe and passes a file name like /dev/fd/63 to the outer command.
diff <(./a) <(./b)
Similarly you can use >(command) if you want to pipe something into a command.
This is called "Process Substitution" in Bash's man page.
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How to get current date in jquery?
I want to know how to use the Date() function in jQuery to get the current date in a yyyy/mm/dd format.
30 Answers
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How to dismiss keyboard iOS programmatically when pressing return
I created a UITextField programmatically making the UITextField a property of the viewController. I need to dismiss the keyboard with the return and the touch on the screen. I was able to get the screen touch to dismiss, but pressing return is not working.
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What is the point of the diamond operator () in Java 7?
The diamond operator in java 7 allows code like the following:
7 Answers
7
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ggplot with 2 y axes on each side and different scales
...o y scales. Giving them the "flawed" speech is often pointless. But I do like the ggplot2 insistence on doing things the right way. I am sure that ggplot is in fact educating the average user about proper visualization techniques.
Maybe you can use faceting and scale free to compare the two data se...