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What's the best name for a non-mutating “add” method on an immutable collection?
...t I use, because it's what System.Linq.Enumerable uses - the decision is already made. :) I can't be the only person who has defined his own overload of the Concat extension on IEnumerable to accept a single value to be appended.
– Daniel Earwicker
Jun 23 '09 a...
Resize a large bitmap file to scaled output file on Android
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Makes it hard to read when you use variables like "b" but good answer non the less.
– Oliver Dixon
Aug 14 '12 at 10:05
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Can I install Python windows packages into virtualenvs?
...ge extension to .zip to see it's a valid zip file. I discovered this after reading answers to my question Where can I download binary eggs with psycopg2 for Windows?
UPDATE
As noted by Tritium21 in his answer nowadays you should use pip instead of easy_install. Pip can't install binary packages cr...
How to get the second column from command output?
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You don't need awk for that. Using read in Bash shell should be enough, e.g.
some_command | while read c1 c2; do echo $c2; done
or:
while read c1 c2; do echo $c2; done < in.txt
...
SCOPE_IDENTITY() for GUIDs?
...inserted.GuidColumn
VALUES(1)
The example above is useful if you want to read the value from a .Net client. To read the value from .Net you would just use the ExecuteScalar method.
...
string sql = "INSERT INTO GuidTest(IntColumn) OUTPUT inserted.GuidColumn VALUES(1)";
SqlCommand cmd = new SqlCom...
Heavy usage of Python at Google [closed]
...e answer, because by the time I interviewed at Google in 2004 Python was already prominent at Google.
Indeed, there's one apparently attractive explanation that I can definitely deny: it's not that Google uses Python because it employs so many prominent Pythonistas -- rather, most "prominent Python...
Make copy of an array
... time, don't matter. The more important point is that src.clone() is more readable and has far less opportunity for error than allocating a new array and doing arraycopy. (And also happens to be fast.)
– Brian Goetz
Mar 17 at 14:03
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The definitive guide to form-based website authentication [closed]
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PART I: How To Log In
We'll assume you already know how to build a login+password HTML form which POSTs the values to a script on the server side for authentication. The sections below will deal with patterns for sound practical auth, and how to avoid the most commo...
On duplicate key ignore? [duplicate]
...nd You have to take into account potential performance hit. Instead of one read and potential one write You get read, write (delete row), write (insert row) and write(update index), so 1x read and 3x write (at best, if only one index is updated)..
– matt
Oct 18...
Javascript date.getYear() returns 111 in 2011? [duplicate]
...nally (but it has since been updated to use getFullYear()). I would never read w3schools for anything :)
– JK.
Jul 24 '12 at 21:33
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