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How do I check to see if a value is an integer in MySQL?
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If the data might include whitespace, this would fail. Consider testing trim(field), possibly with an extra arg to remove newlines.
– Michael Grazebrook
Mar 11 '15 at 18:44
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Is there any way to delete local commits in Mercurial?
... for the changeset you want to remove. This will remove the said changeset including changesets that descend from it and will leave your working directory untouched. If you wish to also revert your committed code changes remove the --keep option.
For more information, check the Strip Extension.
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How do you mock out the file system in C# for unit testing?
...hat I've discovered that its abstractions for things like FileStream don't include IDisposable, I'm looking for a replacement. If the library doesn't allow me to properly dispose of streams, then I can't recommend (or use) it for handling those kinds of operations.
– James Na...
Why is exception handling bad?
...ing code, improved robustness, etc.) There's a section on performance that includes several patterns (Tester-Doer, Try-Parse).
Exceptions and exception handling are not bad. Like any other feature, they can be misused.
shar...
How does Java handle integer underflows and overflows and how would you check for it?
...am and Oracle have created a set of standards for secure Java programming. Included in the standards are techniques for preventing and detecting integer overflow. The standard is published as a freely accessible online resource here: The CERT Oracle Secure Coding Standard for Java
The standard's se...
Return a “NULL” object if search result not found
... the overhead aduric was referring to was not performance, but the cost of including an external library into the project.
– Swoogan
Oct 28 '11 at 19:11
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class method generates “TypeError: … got multiple values for keyword argument …”
... of note: you can get the same type of error if your function def includes self as the first parameter, and then you accidentally call the function also with self as the first parameter.
– Christopher Hunter
Aug 12 '19 at 20:10
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Callback functions in Java
...reating a
separate object but that seems
overkill
Passing a callback includes creating a separate object in pretty much any OO language, so it can hardly be considered overkill. What you probably mean is that in Java, it requires you to create a separate class, which is more verbose (and more ...
Ajax, back button and DOM updates
... (but may be loaded from the standard cache) and re-rendered from scratch, including running all onload handlers. When returning to a page via the bfcache, the DOM is kept in its previous state, without needing to fire onload handlers (because the page is already loaded).
Note that the behavior of...
querySelector search immediate children
...nside it an element with the matching tagName, that nested element will be included in the results before the one you're targeting, again throwing off the index. Here's an example
– user113716
Jun 26 '11 at 2:59
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