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Number of lines in a file in Java
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@PB_MLT: You get the opposite problem if the file consists solely of a newline. Your suggested algo would return 0 and wc -l would return 1. I concluded that all methods have flaws, and implemented one based on how I would like it to behave, see ...
String concatenation vs. string substitution in Python
... slow because you have two str casts in it. With strings the result is the opposite, since string concat is actually faster than all the alternatives when only three strings are concerned.
– Justus Wingert
Sep 16 '15 at 10:02
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How do I get currency exchange rates via an API such as Google Finance? [closed]
... information please visit: https://github.com/fixerAPI/fixer#readme)
Website : http://fixer.io/
Example request :
[http://api.fixer.io/latest?base=USD][7]
Only collects one value per each day
European Central Bank Feed
Docs:
http://www.ecb.int/stats/exchange/eurofxref/html/index.en.html#...
How to negate the whole regex?
... can be used to assert that a pattern matches. Negative lookarounds is the opposite: it's used to assert that a pattern DOES NOT match. Some flavor supports assertions; some puts limitations on lookbehind, etc.
Links to regular-expressions.info
Lookahead and Lookbehind Zero-Width Assertions
Flavo...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
... easiest ones (or at least quickest) broken.
UPDATE: CAPTCHA Killer's website is now taken down, apparently under legal pressure. See http://captcha.org/ for a complete overview of the topic.
And yeah, OCR is not the best way to break a CAPTCHA protected site - there are many other better ways.
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How to design a multi-user ajax web application to be concurrently safe
...weight polling.
A javascript artifact-updater component that refreshes the sites content when the connected javascript client notifies of changes in the watched artifacts-history. (again an observer pattern might be a good choice)
A javascript artifact-committer component that may request to change ...
Why should I care that Java doesn't have reified generics?
...rs are off the mark.
"reified" just means real and usually just means the opposite of type erasure.
The big problem related to Java Generics:
This horrible boxing requirement and disconnect between primitives and reference types. This isn't directly related to reification or type erasure. C#/Sca...
Fastest exit strategy for a Panic Button in Crisis/Abuse Websites? [closed]
I am doing a website for a Women's Abuse Resource Center. A lot of centers like this have what is referred to by the centers as a "Panic Button". An example of a basic one is found here at the top of every page in the green bar.
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How can I copy the output of a command directly into my clipboard?
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On OS X, use pbcopy; pbpaste goes in the opposite direction.
pbcopy < .ssh/id_rsa.pub
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How to affect other elements when one element is hovered
...tting flex-direction to reverse, so that the elements are displayed in the opposite order from the one they're in the DOM. The screenshot above is from such a widget, implemented with pure CSS.
Flexbox is very well supported by 95% of modern browsers.
.rating {
display: flex;
flex-direct...