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What's the difference between `1L` and `1`?
I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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Is there a way to measure how sorted a list is?
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142
You can simply count the number of inversions in the list.
Inversion
An inversion in a sequenc...
How to test an Internet connection with bash?
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Without ping
#!/bin/bash
wget -q --spider http://google.com
if [ $? -eq 0 ]; then
echo ...
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Check variable equality against a list of values
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python tuple to dict
For the tuple, t = ((1, 'a'),(2, 'b'))
dict(t) returns {1: 'a', 2: 'b'}
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Detect IF hovering over element with jQuery
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Counter increment in Bash loop not working
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