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How do you tell if a string contains another string in POSIX sh?
...tring,
# otherwise returns 1.
contains() {
string="$1"
substring="$2"
if test "${string#*$substring}" != "$string"
then
return 0 # $substring is in $string
else
return 1 # $substring is not in $string
fi
}
contains "abcd" "e" || echo "abcd does not cont...
How to check that a string is a palindrome using regular expressions?
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32 Answers
32
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How can I truncate a double to only two decimal places in Java?
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edited May 19 '17 at 17:20
FracturedRetina
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answe...
How do I create an average from a Ruby array?
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20 Answers
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How to call a stored procedure from Java and JPA
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JPA 2.1 now support Stored Procedure, read the Java doc here.
Example:
StoredProcedureQuery storedProcedure = em.createStoredProcedureQuery("sales_tax");
// set parameters
storedProcedure.registerStoredProcedureParameter("subto...
How to find index of list item in Swift?
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22 Answers
22
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How to percent-encode URL parameters in Python?
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Python 2
From the docs:
urllib.quote(string[, safe])
Replace special characters in string
using the %xx escape. Letters, digits,
and the characters '_.-' are never
quoted. By default, this function is
intended for quo...
Python: Ignore 'Incorrect padding' error when base64 decoding
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edited Nov 20 '18 at 8:31
Martijn Pieters♦
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python numpy machine epsilon
...for a given float type is to use np.finfo():
print(np.finfo(float).eps)
# 2.22044604925e-16
print(np.finfo(np.float32).eps)
# 1.19209e-07
share
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improve this answer
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fol...
Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
... c Value
0 -1.674308 foo 0.343801 0.044698
1 -2.163236 bar -2.046438 -0.116798
2 -0.199115 foo -0.458050 -0.199115
3 0.918646 bar -0.007185 -0.001006
4 1.336830 foo 0.534292 0.268245
5 0.976844 bar -0.773630 -0.570417
B...