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How to close activity and go back to previous activity in android
...turn after calling finish() to fix this" I think 'fix' is a bad choice of words here. It's more like you're avoiding execution of the following lines (not fixing).
– Lo-Tan
Jun 20 '13 at 17:37
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How to print to console using swift playground?
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A picture is worth a million words.
– Thuy Trinh
Jun 7 '14 at 6:36
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gdb split view with code
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There are not enough words to describe how awesome that is. Thanks :)
– unresolved_external
Dec 20 '19 at 15:57
1
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Add file extension to files with bash
...$2;}'); mv -n "$f" "$f.$ext"; done
The use of awk is to strip the second word of the string returned from the command file that is actually the extension.
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All but last element of Ruby array
...es most sense to this user. The mirror operations are at hand and it uses words that are easy to interpret && concise.
– Jerome
Mar 22 '17 at 9:39
2
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Random strings in Python
...from (for example) lowercase characters:
import random, string
def randomword(length):
letters = string.ascii_lowercase
return ''.join(random.choice(letters) for i in range(length))
Results:
>>> randomword(10)
'vxnxikmhdc'
>>> randomword(10)
'ytqhdohksy'
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Highlight bash/shell code in markdown
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If need only to highlight first word as command, so I often use properties:
```properties
npm run build
```
I obtain something like:
npm run build
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Python None comparison: should I use “is” or ==?
...they actually are the same object (not just equivalent objects)
In other words, == is a check for equivalence (which is defined from object to object) whereas is checks for object identity:
lst = [1,2,3]
lst == lst[:] # This is True since the lists are "equivalent"
lst is lst[:] # This is False...
How to repeat last command in python interpreter shell?
...eturn while cursor is on a previous command retrieves that command.
Expand word is also useful to reduce typing.
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How to convert string to char array in C++?
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I love the way people abuse the word safety... oh, there's not enough room for the string, so let's truncate it.. oh, we accidentally removed the info about the patient's life threatening drug allergy.. but we don't have a buffer overrun anymore. well, I gu...