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How to use a variable inside a regular expression?
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answered Aug 3 '11 at 18:05
Ned BatchelderNed Batchelder
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How does Google's Page Speed lossless image compression work?
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webp_optimizer.cc
For PNG files, they use OptiPNG with some trial-and-error approach
// we use these four combinations because different images seem to benefit from
// different parameters and this combination of 4 seems to work best for a large
// set of PNGs from the web.
const PngCompressPa...
When is a CDATA section necessary within a script tag?
...ret the &,<,> characters in the script tag and cause XML parsing error. So, you can write your JavaScript with entities, e.g.:
if (a &gt; b) alert('hello world');
But this is impractical. The bigger problem is that if you read the page in HTML, the tag script is considered CDATA 'by...
Why Java needs Serializable interface?
... and if I weren't smart enough to try to serialize socket, I would find my error during debugging. However, now I'm in a situation when I can't use Java serialization at all because of 3rd party class which doesn't implement Serializable for no good reason.
– Yoni Roit
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Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
... for a Python version with the same mode, you may sooner or later run into errors that look something like undefined symbol: PyUnicodeUCS4_AsUTF8String.
According to PEP 0513, UCS4 seems to currently be more popular and recommended. Also, the whole UCS compatibility issues seem to only affect 2.x a...
Inserting data into a temporary table
... into the "There is already an object named '#TempTable' in the database." error (should you run the query again...)
– Rhdr
Apr 29 '19 at 6:21
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Preventing an image from being draggable or selectable without using JS
...P's code.
– Masadow
Oct 21 '14 at 9:05
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Execute combine multiple Linux commands in one line
...colons not always works. E.g. ls >/dev/null & ; echo $! triggers an error.
– Hi-Angel
Nov 6 '14 at 8:52
1
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Strip HTML from Text JavaScript
...h HTML from an untrusted source. To see why, try running strip("<img onerror='alert(\"could run arbitrary JS here\")' src=bogus>")
– Mike Samuel
Sep 22 '11 at 18:06
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What does 'synchronized' mean?
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strategy for preventing thread
interference and memory consistency
errors: if an object is visible to
more than one thread, all reads or
writes to that object's variables are
done through synchronized methods.
In a very, very small nutshell: When you have two threads that are reading...