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Getting the count of unique values in a column in bash
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The GNU site suggests this nice awk script, which prints both the words and their frequency.
Possible changes:
You can pipe through sort -nr (and reverse word and freq[word]) to see the result in descending order.
If you want a s...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
...erver. But if
performance is not a big issue (for example, this is a website content database with hundreds, maybe thousands - but not millions - of rows in each table); AND
your job is to create many small, similar applications (e.g. public-facing content-managed websites) using a common framewo...
jQuery event handlers always execute in order they were bound - any way around this? [duplicate]
...face.)
Which is proof that Stackoverflow is the best question-and-answer site on the internet, at least in my humble opinion.
So I'm posting this for posterity's sake ... and marking it a community wiki, since RussellUresti already answered the question so well.
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How do you design object oriented projects? [closed]
...that still captures the essence of what your program is for. For this web site, for example, the core use cases might be log in, ask a question, answer a question, and view questions and answers. Nothing about reputation, voting, or the community wiki, just the raw essence of what you're shooting ...
Using Sinatra for larger projects via multiple files
...y on Sinatra for larger projects is learning to use the underlying tools.
SitePoint has a very good tutorial from where you can see modular Sinatra apps and helpers. However you should pay special attention to one important detail. You keep multiple Sinatra apps and mount them with Rackup. Once you...
A proper wrapper for console.log with correct line number?
... one of my colleagues copy-pasted your code into our project. It broke site in IE11 and Safari 5. Not sure about other versions of this browsers. Maybe you'll add a check for future copy-pasters?
– sigod
Jul 27 '15 at 21:58
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Proper stack and heap usage in C++?
...to use the heap; if you run out of stack space, the runtime will throw the site titular exception. Not usually a big deal, but another thing to consider.
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Variable number of arguments in C++?
...n C++17, it is possible to define a template-function which, at the caller site, is callable as if it was a varidic function but with the advantages to:
be strongly type safe;
work without the run-time information of the number of arguments, or without the usage of a "stop" argument.
Here is an ...
How to generate and validate a software license key?
... keys for users who want to run signed code downloaded from the publishers site, instead of cracked software. whereas a hash/symmetric scheme can be cracked to produce new valid license keys indistinguishable from invalid ones. Huge difference.
– Erik Aronesty
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What is the most compatible way to install python modules on a Mac?
...load. In my case, my $PYTHONPATH variable contains /usr/local/lib/python26/site-packages. If you use MacPorts' Python, it sets up the other proper directories for you, so you only need to add additional paths to $PYTHONPATH. But again, $PATH isn't used at all when Python searches for modules you hav...