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How to tag an older commit in Git?
...hen.
A tag at the beginning would allow us to "roll back" production to a known, stable state.
8 Answers
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Can you remove elements from a std::list while iterating through it?
... Actually, that's not guaranteed to work. With "erase(i++);", we only know that the pre-incremented value is passed to erase(), and the i is incremented before the semi-colon, not necessarily before the call to erase(). "iterator prev = i++; erase(prev);" is sure to work, as is use the return v...
'id' is a bad variable name in Python
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PEP 8, which was updated 01-Aug-2013, now advises avoiding potential confusion by simply appending _ to the variable name. Please see my answer.
– DavidRR
Jan 22 '15 at 14:28
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Read lines from a file into a Bash array [duplicate]
...a bash array is this:
IFS=$'\n' read -d '' -r -a lines < /etc/passwd
Now just index in to the array lines to retrieve each line, e.g.
printf "line 1: %s\n" "${lines[0]}"
printf "line 5: %s\n" "${lines[4]}"
# all lines
echo "${lines[@]}"
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How to access random item in list?
... IEnumerable<T> list)
{
return list.ElementAt(new Random(DateTime.Now.Millisecond).Next(list.Count()));
}
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How to get the list of files in a directory in a shell script?
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@SorenBjornstad thanks for the advice! I didn't know newlines were permitted in filenames- what kind of files might have them? Like, is this something that occurs commonly?
– rrr
Sep 4 '18 at 2:28
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How to ALTER multiple columns at once in SQL Server
...g tables is a pretty intensive operation. It's disabled by default in SSMS now, and probably for good reason.
– jocull
Nov 10 '17 at 19:29
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How do I pull from a Git repository through an HTTP proxy?
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I have been looking for this for some time now. Thanks.
– M Smith
Sep 12 '13 at 3:06
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How to export query result to csv in Oracle SQL Developer?
...000 SET FEEDBACK off --optional SET HEADING off Spool C:\Export\EMP.csv --Now the query SELECT * FROM EMP; Spool OFF
– Jim P
Jan 10 '13 at 15:36
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How to enumerate an object's properties in Python?
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now how to change the value? in Javascript you could do: object[property] = newValue. How to do it in Python?
– Jader Dias
Aug 9 '09 at 18:32
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