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What is the difference between a var and val definition in Scala?
...ch mutability improves performance, a lot.
For example, take an immutable Queue. When you either enqueue or dequeue things in it, you get a new Queue object. How then, would you go about processing all items in it?
I'll go through that with an example. Let's say you have a queue of digits, and you...
How to effectively work with multiple files in Vim
...
You can jump to any tab by using ngt, where n is the index of the tab (beginning with one). I think there's an option that displays the index of each tab near the file name, but I don't know what it is. If anyone knows, I'd love to hear it.
– void-pointer
...
Run a PHP file in a cron job using CPanel
...ad to put the following line at the top of the PHP script #! /usr/bin/php -q
– Zabs
Sep 7 '11 at 12:04
If u want cronj...
Merge / convert multiple PDF files into one PDF
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Try the good ghostscript:
gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf mine1.pdf mine2.pdf
or even this way for an improved version for low resolution PDFs (thanks to Adriano for pointing this out):
gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dPDFSETTI...
Datatype for storing ip address in SQL Server
...mpares, always use the binary form if you want to be able to leverage your indexes.
UPDATE:
I wanted to add that one way to address the inherent performance problems of scalar UDFs in SQL Server, but still retain the code-reuse of a function is to use an iTVF (inline table-valued function) inste...
Use RSA private key to generate public key?
...ust as easily be assigned in reverse. Generating one from the other is an equivalent problem. The .pem format contains a whole bunch of information, including both exponents, and so both keys, right?
– lynks
Jul 17 '13 at 16:47
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How to jump to top of browser page
... display: none;
position: fixed;
bottom: 20px;
right: 30px;
z-index: 99;
font-size: 18px;
border: none;
outline: none;
background-color: red;
color: white;
cursor: pointer;
padding: 15px;
border-radius: 4px;
}
#myBtn:hover {
background-color: #555;
}
<...
How to send a command to all panes in tmux?
...2}"
for _pane in $(tmux list-panes -s -t ${input_session} -F '#{window_index}.#{pane_index}'); do
# only apply the command in bash or zsh pane
How to paste yanked text into the Vim command line
...amically change the search pattern),
: (stores last VimL typed command via Q or :, readonly),
+ and * (system clipboard registers, you can write to them to set the clipboard and read the clipboard contents from them)
See :help registers for the full reference.
You can, at any moment, use :registe...
Implement Stack using Two Queues
A similar question was asked earlier there , but the question here is the reverse of it, using two queues as a stack. The question...
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