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Why is SELECT * considered harmful?
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322
There are really three major reasons:
Inefficiency in moving data to the consumer. When you...
awk without printing newline
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awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
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Truncate a list to a given number of elements
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3 Answers
3
Active
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stash@{1} is ambiguous?
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234
Your shell is eating your curly brackets, so while you say stash@{1}, git sees stash@1 and that...
ie8 var w= window.open() - “Message: Invalid argument.”
...ad a line like:
window.open('/somefile.html', 'a window title', 'width=300');
The problem was 'a window title' as it is not valid. It worked fine with the following line:
window.open('/somefile.html', '', 'width=300');
In fact, reading carefully I realized that Microsoft does not support...
string.Join on a List or other type
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answered Aug 31 '10 at 15:17
Mark ByersMark Byers
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JavaScript is in array
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edited Mar 13 '12 at 3:44
adeneo
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Curly braces in string in PHP
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echo "This works: {$arr['key']}";
// Works
echo "This works: {$arr[4][3]}";
// This is wrong for the same reason as $foo[bar] is wrong outside a string.
// In other words, it will still work, but only because PHP first looks for a
// constant named foo; an error of level E_NOTICE (undefined c...