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Forward declaring an enum in C++
... char or an int, or something else.
From Section 7.2.5 of the ISO C++ Standard:
The underlying type of an enumeration is an integral type that can represent all the enumerator values defined in the enumeration. It is implementation-defined which integral type is used as the underlying type fo...
The smallest difference between 2 Angles
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Simpler and makes more sense read out loud, though effectively the same thing, first bti figures out the angle, second part makes sure its always the smaller of the 2 possible angles
– Tom J Nowell
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Squash my last X commits together using Git
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Use git rebase -i <after-this-commit> and replace "pick" on the second and subsequent commits with "squash" or "fixup", as described in the manual.
In this example, <after-this-commit> is either the SHA1 hash or the relative location from the HEAD of the c...
horizontal line and right way to code it in html, css
I need to draw a horizontal line after some block, and I have three ways to do it:
10 Answers
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Performance difference between IIf() and If
... "Alternative")
The first is basically C#'s ternary conditional operator and the second is its coalesce operator (return result unless it’s Nothing, in which case return "Alternative"). If has thus replaced IIf and the latter is obsolete.
Like in C#, VB's conditional If operator short-circuits,...
How to get browser width using JavaScript code?
...elevant portion is found on line 37 of dimensions.js. Here it is extracted and modified to work standalone:
function getWidth() {
return Math.max(
document.body.scrollWidth,
document.documentElement.scrollWidth,
document.body.offsetWidth,
document.documentElement.offsetWi...
how to show progress bar(circle) in an activity having a listview before loading the listview with d
... ListView in my second activity.OnItemClick of it I called a webservice and trying to fetch data. And after that I am moving to third activity which also have a ListView having description of previous activities ListView item.
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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...oblems. Packageless servlets work only in specific Tomcat+JDK combinations and this should never be relied upon.
In case of a "plain" IDE project, the class needs to be placed in its package structure inside "Java Resources" folder and thus not "WebContent", this is for web files such as JSP. Belo...
Canvas is stretched when using CSS but normal with “width” / “height” properties
I have 2 canvases, one uses HTML attributes width and height to size it, the other uses CSS:
8 Answers
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How does one capture a Mac's command key via JavaScript?
...is not going to be captured by browsers as such.
This is only for the command key on MacOS/keyboards.
Unlike Shift/Alt/Ctrl, the Cmd (“Apple”) key is not considered a modifier key—instead, you should listen on keydown/keyup and record when a key is pressed and then depressed based on event...