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Pick a random element from an array
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Swift 4.2 and above
The new recommended approach is a built-in method on the Collection protocol: randomElement(). It returns an optional to avoid the empty case I assumed against previously.
let array = ["Frodo", "Sam", "Wise", ...
How to remove a file from version control without deleting it?
...hard Chambers
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answered Aug 26 '10 at 21:56
Andres Jaan TackAndres Jaan Tack
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PostgreSQL Autoincrement
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714
Yes, SERIAL is the equivalent function.
CREATE TABLE foo (
id SERIAL,
bar varchar);
INSERT INT...
How to get the seconds since epoch from the time + date output of gmtime()?
...time.strptime('Jul 9, 2009 @ 20:02:58 UTC', '%b %d, %Y @ %H:%M:%S UTC'))
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More information about calendar module here
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CSS 3 slide-in from left transition
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edited Feb 14 '14 at 8:27
answered Jun 8 '13 at 8:28
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Command line CSV viewer? [closed]
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452
You can also use this:
column -s, -t < somefile.csv | less -#2 -N -S
column is a standar...
Why is Maven downloading the maven-metadata.xml every time?
...nswered May 7 '13 at 17:26
user944849user944849
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In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
.... As TIMESTAMP only stores the number of seconds since 1970-01-01, it uses 4 bytes.
You can read more about the differences between time formats in MySQL here.
In the end, it comes down to what you need your date/time column to do. Do you need to store dates and times before 1970 or after 2038? Us...
How does having a dynamic variable affect performance?
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Eric LippertEric Lippert
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Using awk to print all columns from the nth to the last
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