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How can I get the corresponding table header (th) from a table cell (td)?
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You can do it by using the td's index:
var tdIndex = $td.index() + 1;
var $th = $('#table tr').find('th:nth-child(' + tdIndex + ')');
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Java List.add() UnsupportedOperationException
...tation supports the add() method.
One common example is the List returned by Arrays.asList(): it is documented not to support any structural modification (i.e. removing or adding elements) (emphasis mine):
Returns a fixed-size list backed by the specified array.
Even if that's not the specifi...
Test for existence of nested JavaScript object key
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You have to do it step by step if you don't want a TypeError because if one of the members is null or undefined, and you try to access a member, an exception will be thrown.
You can either simply catch the exception, or make a function to test the...
Java: getMinutes and getHours
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From the Javadoc for Date.getHours
As of JDK version 1.1, replaced by Calendar.get(Calendar.HOUR_OF_DAY)
So use
Calendar rightNow = Calendar.getInstance();
int hour = rightNow.get(Calendar.HOUR_OF_DAY);
and the equivalent for getMinutes.
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See line breaks and carriage returns in editor
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VI shows newlines (LF character, code x0A) by showing the subsequent text on the next line.
Use the -b switch for binary mode. Eg vi -b filename or vim -b filename --.
It will then show CR characters (x0D), which are not normally used in Unix style files, as the cha...
Can I call memcpy() and memmove() with “number of bytes” set to zero?
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As said by @You, the standard specifies that the memcpy and memmove should handle this case without problem; since they are usually implemented somehow like
void *memcpy(void *_dst, const void *_src, size_t len)
{
unsigned char ...
Difference Between Cohesion and Coupling
...ting Staff related data. They don't perform actions that should be managed by another class.
– Antonio Pantano
Oct 14 '16 at 22:09
3
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Fade Effect on Link Hover?
...a vendor prefix is there, doesn't mean it will
work in a browser made by that vendor either, it's just for
future-proofing purposes I guess. */
-o-transition:.5s;
-ms-transition:.5s;
-moz-transition:.5s;
-webkit-transition:.5s;
/* ...and now for the proper property */
transitio...
What's the difference between JPA and Hibernate? [closed]
...while Hibernate's JPA implementation is code that meets the API as defined by the JPA specification and provides the under the hood functionality.
When you use Hibernate with JPA you are actually using the Hibernate JPA implementation. The benefit of this is that you can swap out Hibernate's imple...
What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...uld return you the name of the script file.
dirname is a utility provided by GNU coreutils that remove the last component from the filename. Thus if you execute your script by saying bash foo, "$( dirname "${BASH_SOURCE[0]}" )" would return .. If you said bash ../foo, it'd return ..; for bash /some...