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List of tables, db schema, dump etc using the Python sqlite3 API
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answered Nov 20 '08 at 15:26
converter42converter42
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How to Apply Gradient to background view of iOS Swift App
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164
The Colors you're providing to gradient must be of type CGColor. So set your array of CGColor t...
How to count the number of files in a directory using Python
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edited Sep 15 '14 at 22:06
Bruno Bronosky
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Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
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edited Feb 15 '18 at 6:54
Pang
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How do I parse a string to a float or int?
... Harley HolcombeHarley Holcombe
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int value under 10 convert to string two digit number
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6 Answers
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Android Studio inline compiler showing red errors, but compilation with gradle works fine
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26 Answers
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Replace all non-alphanumeric characters in a string
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186
Regex to the rescue!
import re
s = re.sub('[^0-9a-zA-Z]+', '*', s)
Example:
>>> re...
How to map and remove nil values in Ruby
...[1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case, as the block evaluates to falsey, simply:
items.filter_map { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a good read on the subject, with some performance benchmarks against some of ...
Using an if statement to check if a div is empty
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answered Jan 12 '11 at 4:56
user113716user113716
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