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What is a regular expression for a MAC Address?
... As an aside, the quote above concerning "standard format" comes from Wikipedia, not the 802.3 standards body. IEEE 802-2014 actually specifies hyphens for ordinary MAC addresses (§ 8.1 ¶ 3) and colons for the obsolescent bit-reversed notation (¶ 4). Importantly, in practice, no one o...
Is it possible to make anonymous inner classes in Java static?
...I don't recall having seen any obvious errors in the Java Glossary before. From now on, I take it with a grain of salt.
– Michael Myers♦
Apr 17 '09 at 15:17
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Django - How to rename a model field using South?
...ble names:
Django automatically derives the name of the database table from the name of your model class and the app that contains it. A model's database table name is constructed by joining the model's "app label" -- the name you used in manage.py startapp -- to the model's class name, with an ...
How/When does Execute Shell mark a build as failure in Jenkins?
...ctly that happens depends on your build script.
I wrote something similar from another point-of-view but maybe it will help to read it anyway:
Why does Jenkins think my build succeeded?
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Print new output on same line [duplicate]
...
From help(print):
Help on built-in function print in module builtins:
print(...)
print(value, ..., sep=' ', end='\n', file=sys.stdout)
Prints the values to a stream, or to sys.stdout by default.
Optional keywor...
Scraping html tables into R data frames using the XML package
...t;- unname(sapply(headers, function(x) x$children$text$value))
# Get rows from table
content <- c()
for(i in 2:length(thetable$children))
{
tablerow <- thetable$children[[i]]$children
opponent <- tablerow[[1]]$children[[2]]$children$text$value
others <- unname(sapply(tablerow[-...
Express next function, what is it really for?
...route callback(s)." next(err) is used to jump to any "error middleware" (E from the post).
– Jonathan Lonowski
Oct 30 '12 at 7:53
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isset() and empty() - what to use
...y array)
var $var; (a variable declared, but without a value in a class)
From http://php.net/manual/en/function.empty.php
As mentioned in the comments the lack of warning is also important with empty()
PHP Manual says
empty() is the opposite of (boolean) var, except that no warning is
ge...
What is the difference between #import and #include in Objective-C?
...ocessor inclusion model with a more robust, more efficient semantic model. From the user’s perspective, the code looks only slightly different, because one uses an import declaration rather than a #include preprocessor directive:
@import Darwin; // Like including all of /usr/include. @see /usr/i...
How to check if a file exists in the Documents directory in Swift?
... presumably those comments were that absoluteString doesn't work from a URL, but path does, which is what I found!
– CMash
Sep 27 '19 at 7:36
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