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Regular expression to return text between parenthesis
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what if there is no '(' and ')'? you will get s[0:-1]. Which means you will get whatever in 's' :\. It will be good if you check that the string has parenthesis first.
– Omar
May 26 '16 at 1:21
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Deleting Files using Git/GitHub
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Thank you. And I had just written alias in bash to do the above. Amazing.
– Zack
Feb 20 '10 at 16:36
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SQL Server principal “dbo” does not exist,
...My database did not have had any owner before this issue. Execute this command in your database to set owner to sysadmin account:
use [YourDatabaseName] EXEC sp_changedbowner 'sa'
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Why does cURL return error “(23) Failed writing body”?
...it wants it will close the read stream from curl. cURL doesn't expect this and emits the "Failed writing body" error.
A workaround is to pipe the stream through an intermediary program that always reads the whole page before feeding it to the next program.
E.g.
curl "url" | tac | tac | grep -qs f...
Get name of object or class
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Get your object's constructor function and then inspect its name property.
myObj.constructor.name
Returns "myClass".
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How to add 30 minutes to a JavaScript Date object?
...(date, minutes) {
return new Date(date.getTime() + minutes*60000);
}
And just in case this is not obvious, the reason we multiply minutes by 60000 is to convert minutes to milliseconds.
Be Careful with Vanilla Javascript. Dates Are Hard!
You may think you can add 24 hours to a date to get to...
Java NIO FileChannel versus FileOutputstream performance / usefulness
... nio FileChannel versus normal FileInputStream/FileOuputStream to read and write files to filesystem. I observed that on my machine both perform at the same level, also many times the FileChannel way is slower. Can I please know more details comparing these two methods. Here is the code I used...
Simulating group_concat MySQL function in Microsoft SQL Server 2005?
... This example worked for me, but I tried doing another aggregation and it didn't work, gave me an error: "the correlation name 'pre_trimmed' is specified multiple times in a FROM clause."
– PhilChuang
Jan 22 '10 at 19:24
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ImportError: No module named PIL
I use this command in the shell to install PIL:
22 Answers
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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
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Thanks for the links! And thanks for the quick overview... My office is blocking the link for some reason :P but I'll check it out as soon as I get to a regular computer.
– froadie
Feb 11 '10 at 18:47
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