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disable all form elements inside div
...g jQuery: Because :input is a jQuery extension and not part of the CSS specification, queries using :input cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. To achieve the best performance when using :input to select elements, first select the eleme...
Should I use pt or px?
What is the difference between pt and px in CSS? Which one should I use and why?
5 Answers
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Plot smooth line with PyPlot
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This will not work if the T is not sorted. And also if the functiton(T) is not one-to-one.
– Rahat Zaman
Feb 22 '19 at 1:23
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django syncdb and an updated model
... has changed or how to preserve it so it insists that you do it yourself. If you don't like it, use a migration tool like South.
– Soviut
Oct 23 '09 at 3:21
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What is MyAssembly.XmlSerializers.dll generated for?
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If it's generated when the project setting is Auto, does that mean it's needed? what happens if you don't deploy the X.XMLSerializers.dll with the application, will it be generated on the fly?
– Rory
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Are default enum values in C the same for all compilers?
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Yes. Unless you specify otherwise in the definition of the enumeration, the initial enumerator always has the value zero and the value of each subsequent enumerator is one greater than the previous enumerator.
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Does name length impact performance in Redis?
...et, set lookup methods are O(1). The more complex operations on a set (SDIFF, SUNION, SINTER) are O(N). Chances are that populating $userId was a more expensive operation than using a longer key.
Redis comes with a benchmark utility called redis-benchmark, if you modify the "GET" test in src/red...
How to trim whitespace from a Bash variable?
...EXTERNAL_SPACE}"
# > length(FOO_NO_EXTERNAL_SPACE)==14
Alternatively, if your bash supports it, you can replace echo -e "${FOO}" | sed ... with sed ... <<<${FOO}, like so (for trailing whitespace):
FOO_NO_TRAIL_SPACE="$(sed -e 's/[[:space:]]*$//' <<<${FOO})"
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How to select the first element with a specific attribute using XPath
... not return all books from 'US'. I have tested it mutiple times and under different languages' xpath implementations. /bookstore/book[@location='US'][1] returns the first 'US' book under a bookstore. If there are mutiple bookstores, then it will return the first from each. This is what the OP asked ...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
What is the difference - technical, philosophical, conceptual, or otherwise - between
2 Answers
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