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How to check whether a string contains a substring in Ruby
...clude on it's own is not ideal as it can throw a NoMethodError if nil test = nil test.include?("test") NoMethodError: undefined method `include?' for nil:NilClass should always convert the value being included to the expected value:- test.to_s.include?("test")
–...
How can I generate a self-signed certificate with SubjectAltName using OpenSSL? [closed]
...rithm: sha256WithRSAEncryption
Issuer: C=US, ST=MD, L=Baltimore, O=Test CA, Limited, CN=Test CA/emailAddress=test@example.com
Validity
Not Before: Feb 1 05:23:05 2014 GMT
Not After : Feb 1 05:23:05 2016 GMT
Subject: C=US, ST=MD, L=Baltimore, O=Test C...
Why is my program slow when looping over exactly 8192 elements?
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The following tests have been done with Visual C++ compiler as it is used by the default Qt Creator install (I guess with no optimization flag). When using GCC, there is no big difference between Mystical's version and my "optimized" code....
Does Python have a ternary conditional operator?
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You can index into a tuple:
(falseValue, trueValue)[test]
test needs to return True or False.
It might be safer to always implement it as:
(falseValue, trueValue)[test == True]
or you can use the built-in bool() to assure a Boolean value:
(falseValue, trueValue)[bool(<...
If using maven, usually you put log4j.properties under java or resources?
...nvironment, etc) to configure the desired logging. Thus, putting it in src/test/resources is my preferred solution.
Note: Speaking of leaving the concrete log config to the client/user, you should consider replacing log4j with slf4j in your app.
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How do I pull files from remote without overwriting local files?
...tailed example:
Suppose your repository is like this (you've made changes test2:
* ed0bcb2 - (HEAD, master) test2
* 4942854 - (origin/master, origin/HEAD) first
And the origin repository is like this (someone else has committed test1):
* 5437ca5 - (HEAD, master) test1
* 4942854 - first
At thi...
How can I compare two lists in python and return matches
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A quick performance test showing Lutz's solution is the best:
import time
def speed_test(func):
def wrapper(*args, **kwargs):
t1 = time.time()
for x in xrange(5000):
results = func(*args, **kwargs)
t2 = ...
Structure padding and packing
... 2 structs could be used by non-struct variables that could fit in.
e.g in test_struct_address() below, the variable x resides between adjacent struct g and h.
No matter whether x is declared, h's address won't change, x just reused the empty space that g wasted.
Similar case for y.
Example
(fo...
How to prevent favicon.ico requests?
...c) it looks like Firefox >= 25 doesn't like the above syntax anymore. I tested on Firefox 27 and it doesn't work while it still work on Webkit/Chrome.
So here is the new one that should cover all recent browsers. I tested Safari, Chrome and Firefox:
<link rel="icon" href="data:;base64,=">
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Fastest Way of Inserting in Entity Framework
I'm looking for the fastest way of inserting into Entity Framework.
30 Answers
30
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