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Best way to iterate through a Perl array
...he array elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They're all the same except for #5.
for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes of the...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
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edited Feb 1 '11 at 4:53
Andrew Grimm
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Django self-referential foreign key
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Zags
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answered Mar 8 '13 at 2:25
Jared ForsythJa...
PHP Foreach Pass by Reference: Last Element Duplicating? (Bug?)
... 'foo'.
Loop 2, the value and $arr[2] become $arr[1], which is 'bar'.
Loop 3, the value and $arr[2] become $arr[2], which is 'bar' (because of loop 2).
The value 'baz' is actually lost at the first call of the second foreach loop.
Debugging the Output
For each iteration of the loop, we'll echo the v...
SQL Server Escape an Underscore
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Pang
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answered Aug 8 '08 at 11:59
Lasse V. KarlsenLasse V. Karlsen
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How to compare types
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answered Mar 30 '11 at 6:47
JaredParJaredPar
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How do you append to an already existing string?
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edited Feb 17 '17 at 10:23
lleaff
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answered Feb 12 '10 at 7:16...
Angularjs Template Default Value if Binding Null / Undefined (With Filter)
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0xcaff
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answered May 13 '13 at 13:27
UndistractionUndistra...
How can I use “puts” to the console without a line break in ruby on rails?
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idlefingersidlefingers
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PHP namespaces and “use”
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Tomas Prado
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answered May 10 '12 at 21:17
cmbuckleycmbuckl...