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Skip rows during csv import pandas
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145
You can try yourself:
>>> import pandas as pd
>>> from StringIO import Strin...
How can I check if an ip is in a network in Python?
...s (say 192.168.0.1), how do I check if it's in a network (say 192.168.0.0/24) in Python?
27 Answers
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Why does SIGPIPE exist?
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Ton van den Heuvel
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answered Feb 18 '12 at 2:13
R.. GitHub STOP HELPING ICER.. GitHub...
How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
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974
Regular expressions are used for Pattern Matching.
To use in Excel follow these steps:
Step ...
Identifying and removing null characters in UNIX
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edited Jan 27 '14 at 3:06
Palec
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answ...
Efficient way to determine number of digits in an integer
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}
if (x >= 100) {
if (x >= 1000)
return 4;
return 3;
}
if (x >= 10)
return 2;
return 1;
}
// partial-specialization optimization for 8-bit numbers
template <>
int numDigits(char n)
{
// if you have the time, replace this wi...
How can I specify the base for Math.log() in JavaScript?
...he Red Pea
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answered Jun 10 '10 at 23:33
PeterPeter
108k4646 gold badge...
PHP file_get_contents() and setting request headers
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edited May 11 '17 at 14:34
Federkun
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answered J...
Regex using javascript to return just numbers
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Regular expressions:
var numberPattern = /\d+/g;
'something102asdfkj1948948'.match( numberPattern )
This would return an Array with two elements inside, '102' and '1948948'. Operate as you wish. If it doesn't match any it will return null.
To concatenate them:
'something102asdfkj1948948'.ma...
How to map and remove nil values in Ruby
...s = [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...