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Why is a pure virtual function initialized by 0?
...He also states explicitly that this need not set the vtable entry to NULL, and that doing so is not the best way of implementing pure virtual functions.
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Why does setTimeout() “break” for large millisecond delay values?
...y presume this is causing some form of internal exception in the JS Engine and causing the function to fire immediately rather than not at all.
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javascript set a variable if undefined
I know that I can test for a javascript variable and then define it if it is undefined, but is there not some way of saying
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How to hide a in a menu with CSS?
...: none. FF won't do it (technically invalid HTML, per the spec) but Chrome and IE will and it will hide the option.
EDIT: Oh yeah, I already implemented this in jQuery:
jQuery.fn.toggleOption = function( show ) {
jQuery( this ).toggle( show );
if( show ) {
if( jQuery( this ).parent...
Why java.util.Optional is not Serializable, how to serialize the object with such fields
...The short answer is that the Java Lambda (JSR-335) expert group considered and rejected it. That note, and this one and this one indicate that the primary design goal for Optional is to be used as the return value of functions when a return value might be absent. The intent is that the caller immedi...
Are static class instances unique to a request or a server in ASP.NET?
...asses unique to each web request, or are they instantiated whenever needed and GCed whenever the GC decides to disposed of them?
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Setting Short Value Java
... There are suffixes for other types as well: d/D makes a double and f/F makes a float!
– Joachim Sauer
Feb 19 '10 at 8:48
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Backing beans (@ManagedBean) or CDI Beans (@Named)?
I've just started reading through Core JavaServer Faces, 3rd Ed. and they say this (emphasis mine):
5 Answers
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fatal: could not read Username for 'https://github.com': No such file or directory
...y added 'origin github'. I removed the origin [ git remote remove origin ] and then wrote what is in the answer with my username and password and it worked fine.
– P_Rein
Jun 4 '14 at 13:11
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jQuery `.is(“:visible”)` not working in Chrome
...greater than zero.
In other words, an element must have a non-zero width and height to consume space and be visible.
Elements with visibility: hidden or opacity: 0 are considered visible,
since they still consume space in the layout.
On the other hand, even if its visibility is set to hidd...