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Too many 'if' statements?
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600
If you cannot come up with a formula, you can use a table for such a limited number of outcomes...
How to validate an e-mail address in swift?
...ValidEmail(_ email: String) -> Bool {
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
let emailPred = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
return emailPred.evaluate(with: email)
}
for versions of Swift earlier than 3.0:
func isValidEmail(e...
Understanding slice notation
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answered Feb 3 '09 at 22:48
Greg HewgillGreg Hewgill
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How can I get a list of locally installed Python modules?
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30 Answers
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Catching error codes in a shell pipe
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20
If you really don't want the second command to proceed until the first is known to be successful...
How to set a single, main title above all the subplots with Pyplot?
...plotlib.pyplot as plt
import numpy as np
fig=plt.figure()
data=np.arange(900).reshape((30,30))
for i in range(1,5):
ax=fig.add_subplot(2,2,i)
ax.imshow(data)
fig.suptitle('Main title') # or plt.suptitle('Main title')
plt.show()
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Converting RGB to grayscale/intensity
...ic weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
8 Answers
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Regular expression search replace in Sublime Text 2
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edited Nov 19 '19 at 14:08
answered Aug 5 '12 at 20:41
Bo...
How to format a float in javascript?
... string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434.
14 Answers
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Count work days between two dates
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306
For workdays, Monday to Friday, you can do it with a single SELECT, like this:
DECLARE @StartD...