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Fastest way to list all primes below N
...to, rwh_primes, rwh_primes1, and rwh_primes2.
Of the plain Python methods tested, with psyco, for n=1000000,
rwh_primes1 was the fastest tested.
+---------------------+-------+
| Method | ms |
+---------------------+-------+
| rwh_primes1 | 43.0 |
| sieveOfAtkin | 4...
Can I change a private readonly field in C# using reflection?
...eld. What I attempted made no sense. Your solution works perfectly fine (tested again, correctly this time)
– Sage Pourpre
Apr 17 '15 at 2:57
...
What is the difference between require_relative and require in Ruby?
...taining the require_relative statement.
For example, if you have unit test classes in the "test" directory, and data for them under the test "test/data" directory, then you might use a line like this in a test case:
require_relative "data/customer_data_1"
...
Executing multiple commands from a Windows cmd script
... I was trying to do something similar with npm updates and protractor tests. I didn't think this answer applied to me until I realized npm and protractor are .cmd files on Windows.
– joshden
Apr 20 '17 at 20:32
...
How can I check if a file exists in Perl?
...
Test whether something exists at given path using the -e file-test operator.
print "$base_path exists!\n" if -e $base_path;
However, this test is probably broader than you intend. The code above will generate output if a p...
How to “perfectly” override a dict?
...nsform__(self, key):
return key.lower()
s = MyTransformedDict([('Test', 'test')])
assert s.get('TEST') is s['test'] # free get
assert 'TeSt' in s # free __contains__
# free setdefault, __eq__, and so on
import pickle
# works too sinc...
How to check a not-defined variable in JavaScript
...cript 5, which was released in 2009. You can now safely use === and !== to test for undefined without using typeof as undefined has been read-only for some time.
If you want to know if a member exists independent but don't care what its value is:
if ('membername' in object) // With inheritance
if ...
Why does make think the target is up to date?
...
Maybe you have a file/directory named test in the directory. If this directory exists, and has no dependencies that are more recent, then this target is not rebuild.
To force rebuild on these kind of not-file-related targets, you should make them phony as follow...
How do I compare two string variables in an 'if' statement in Bash? [duplicate]
...ngimed, [ is a command (actually, an alternate name for the command called test); if you run which [, you'll see there's actually an executable file for it on disk (even though the shell may provide a built-in implementation as a performance optimization). Just like you have to put a space between t...
What are all the uses of an underscore in Scala?
...ses of the underscore is Scala _ [underscore] magic.
Examples:
def matchTest(x: Int): String = x match {
case 1 => "one"
case 2 => "two"
case _ => "anything other than one and two"
}
expr match {
case List(1,_,_) => " a list with three element and the first elem...