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Xcode stops working after set “xcode-select -switch”
... JimJim
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3
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Getting thread id of current method call
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230
NSLog(@"%@", [NSThread currentThread]);
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python re.sub group: number after \number
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330
The answer is:
re.sub(r'(foo)', r'\g<1>123', 'foobar')
Relevant excerpt from the docs:
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How to list records with date from the last 10 days?
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SELECT Table.date
FROM Table
WHERE date > current_date - interval '10' day;
I prefer that format as it makes things easier to read (but it is the same as current_date - 10).
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Is there StartsWith or Contains in t sql with variables?
... @isExpress = case when left(@edition, 15) = 'Express Edition' then 1 else 0 end
iif function (starting with SQL Server 2012)
set @isExpress = iif(left(@edition, 15) = 'Express Edition', 1, 0);
charindex function
set @isExpress = iif(charindex('Express Edition', @edition) = 1, 1, 0);
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Test if something is not undefined in JavaScript
I'm checking if(response[0].title !== undefined) , but I get the error:
11 Answers
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How do I use vi keys in ipython under *nix?
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In case someone's wandering in here recently, IPython 5.0 switched from readline to prompt_toolkit, so an updated answer to this question is to pass an option:
$ ipython --TerminalInteractiveShell.editing_mode=vi
... or to set it globally in the profile configuration (~/.ipytho...
Python to print out status bar and percentage
...t progressbar
from time import sleep
bar = progressbar.ProgressBar(maxval=20, \
widgets=[progressbar.Bar('=', '[', ']'), ' ', progressbar.Percentage()])
bar.start()
for i in xrange(20):
bar.update(i+1)
sleep(0.1)
bar.finish()
To install it, you can use easy_install progressbar, or pip ...
SQLite string contains other string query
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Maksim Turaev
2,8512020 silver badges3636 bronze badges
answered Aug 17 '10 at 2:17
OMG PoniesOMG Ponies
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Extract substring using regexp in plain bash
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Using pure bash :
$ cat file.txt
US/Central - 10:26 PM (CST)
$ while read a b time x; do [[ $b == - ]] && echo $time; done < file.txt
another solution with bash regex :
$ [[ "US/Central - 10:26 PM (CST)" =~ -[[:space:]]*([0-9]{2}:[0-9]{2}) ]] &&
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