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MySQL search and replace some text in a field
...REPLACE(field, 'foo', 'bar') WHERE INSTR(field, 'foo') > 0;
REPLACE (string functions)
INSTR (string functions)
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Why is there no xrange function in Python3?
...y (linked to, I believe, the change that replaced the last instance of the string "xrange" anywhere in the file).
So, why is it slower?
Well, for one, they've added a lot of new features. For another, they've done all kinds of changes all over the place (especially inside iteration) that have mino...
Code block in numbered list (Wiki syntax)
... That wiki syntax worked for me on MediaWiki 1.15.1. It puts a little extra space around the code lines, but it works.
– Nick Chammas
Jun 27 '12 at 18:28
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Differences between Java 8 Date Time API (java.time) and Joda-Time
...er to use getDayOfYear() instead of get(DAY_OF_YEAR). This causes a lot of extra methods compared with java.util.Calendar (although latter is not type-safe at all due to excessive use of ints).
Performance
See the other answer by @OO7 pointing to the analysis of Mikhail Vorontsov although point 3 ...
How to initialize an array in Java?
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+1. You have an extra opening brace. One can also write: data[0] = 10; data[1] = 20; .... after int data[] = new int[10], but it is too much code and it will end up doing the same thing.
– Hamish Grubijan
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Replace transparency in PNG images with white background
... This operation is simple and fast, and does the job without needing
any extra memory use, or other side effects that may be associated
with alternative transparency removal techniques. It is thus the
preferred way of removing image transparency.
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What is the difference between a User Control Library and a Custom Control Library?
... control is that if you can get something done with a user control and the extra control element in the logical tree doesn't bother you, use a user control as they are so much easier to create and maintain. Use a custom control only if you have a reason not to use a user control.
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Open a file with su/sudo inside Emacs
...hat subsequent sudo-opened files take much less time.
I haven't found the extra time it takes to save burdening, either. It's fast enough, IMO.
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Using “like” wildcard in prepared statement
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You need to set it in the value itself, not in the prepared statement SQL string.
So, this should do for a prefix-match:
notes = notes
.replace("!", "!!")
.replace("%", "!%")
.replace("_", "!_")
.replace("[", "![");
PreparedStatement pstmt = con.prepareStatement(
"SELECT ...
Is there a good jQuery Drag-and-drop file upload plugin? [closed]
...desktop drag+drop plugin out there that I know of which allows you to send extra data along with the file, including data that can be calculated at the time of upload with a callback function.
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