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Clojure: cons (seq) vs. conj (list)
I know that cons returns a seq and conj returns a collection. I also know that conj "adds" the item to the optimal end of the collection, and cons always "adds" the item to the front. This example illustrates both of these points:
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Match linebreaks - \n or \r\n?
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Gonna answer in opposite direction.
2) For a full explanation about \r and \n I have to refer to this question, which is far more complete than I will post here: Difference between \n and \r?
Long story short, Linux uses \n for a new-line, Windows \r\n and old Macs \r. So there are multiple way...
Alternate output format for psql
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I just needed to spend more time staring at the documentation. This command:
\x on
will do exactly what I wanted. Here is some sample output:
select * from dda where u_id=24 and dda_is_deleted='f';
-[ RECORD 1 ]------+--------------------------------------------------------------------------...
Explain the “setUp” and “tearDown” Python methods used in test cases
Can anyone explain the use of Python's setUp and tearDown methods while writing test cases apart from that setUp is called immediately before calling the test method and tearDown is called immediately after it has been called?
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How to completely remove an issue from GitHub?
...entered in error"
At May 2018, original answer:
Three 8 years later, and closing issues remains the answer (still no deletion possible).
See "The Ghost of Issues Past", where GitHub advise to check and close:
issues opened over a year ago state:open created:<2013-01-01
the ones I'm invol...
Variables not showing while debugging in Eclipse
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I keep running into this same issue, and resetting the perspective has been working for me. thanks for posting this.
– stephenbayer
Jun 6 '11 at 15:53
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How does one unit test routes with Express?
I'm in the process of learning Node.js and have been playing around with Express . Really like the framework;however, I'm having trouble figuring out how to write a unit/integration test for a route.
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How to get client's IP address using JavaScript?
...gs simpler). Below are all the free active IP lookup services I could find and the information they return. If you know of any more, then please add a comment and I'll update this answer.
Cloudflare
Try it: https://www.cloudflare.com/cdn-cgi/trace
// If your site is on Cloudflare, then you can use ...
Casperjs/PhantomJs vs Selenium
... have seen majority of our users using Chrome. So we wanted to know - pros and cons of using PhantomJS vs Selenium:
5 Answe...
UnicodeDecodeError, invalid continuation byte
... string that is almost certainly encoded in latin 1. You can see how UTF-8 and latin 1 look different:
>>> u'\xe9'.encode('utf-8')
b'\xc3\xa9'
>>> u'\xe9'.encode('latin-1')
b'\xe9'
(Note, I'm using a mix of Python 2 and 3 representation here. The input is valid in any version of...