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Referring to the null object in Python
... Python; instead there's None. As stated already, the most accurate way to test that something has been given None as a value is to use the is identity operator, which tests that two variables refer to the same object.
>>> foo is None
True
>>> foo = 'bar'
>>> foo is None
F...
Listening for variable changes in JavaScript
...arget[key] = value;
return true;
}
});
targetProxy.hello_world = "test"; // console: 'hello_world set to test'
The only drawbacks of the Proxy object are:
The Proxy object is not available in older browsers (such as IE11) and the polyfill cannot fully replicate Proxy functionality.
Pro...
What's the most efficient test of whether a PHP string ends with another string?
The standard PHP way to test whether a string $str ends with a substring $test is:
13 Answers
...
Gzip versus minify
...
Very simple to test. I took your js, put them in different files and ran gzip -9 on them. Here's the result. This was done on a WinXP machine running Cygwin and gzip 1.3.12.
-rwx------ 1 xxxxxxxx mkgroup-l-d 88 Apr 30 09:17 expande...
PHP function overloading
...;';
echo $obj->mymethod();
echo '<br />$obj->mymethod(null,"test") <br />';
echo $obj->mymethod(null,'test');
echo '<br /> $obj->mymethod("test","test","test")<br />';
echo $obj->mymethod('test','test','test');
...
What does the “===” operator do in Ruby? [duplicate]
...f === differs depending on type. For example:
(1...3) === 2
=> true
/test/ === "this is a test"
=> true
case 'test'
when /blah/
"Blach"
when /test/
"Test"
else
"Fail"
end
=> "Test"
Stephen, checkout http://ruby-doc.org/docs/ProgrammingRuby/ (the "Pickaxe"), it should be able to ...
What's the difference between unit, functional, acceptance, and integration tests? [closed]
...at is the difference between unit, functional, acceptance, and integration testing (and any other types of tests that I failed to mention)?
...
How to join absolute and relative urls?
...mport urlparse
>>> urlparse.urljoin(url1, url2)
'http://127.0.0.1/test1/test4/test6.xml'
With Python 3 (where urlparse is renamed to urllib.parse) you could use it as follow:
>>> import urllib.parse
>>> urllib.parse.urljoin(url1, url2)
'http://127.0.0.1/test1/test4/test...
Remove json element
...
I don't get this answer. Where's "foo" in the test data?
– Tony
Oct 4 '13 at 2:45
9
...
Passing command line arguments to R CMD BATCH
...command line
$ R CMD BATCH --no-save --no-restore '--args a=1 b=c(2,5,6)' test.R test.out &
Test.R
##First read in the arguments listed at the command line
args=(commandArgs(TRUE))
##args is now a list of character vectors
## First check to see if arguments are passed.
## Then cycle through...