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Double Negation in C++
...l back when we had no bool type, to help avoid storing values other than 1 and 0 in boolean variables.
– Mike Seymour
Jan 17 '12 at 19:01
7
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What does @@variable mean in Ruby?
What are Ruby variables preceded with double at signs ( @@ )? My understanding of a variable preceded with an at sign is that it is an instance variable, like this in PHP:
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How to shut down the computer from C#
...ower button to boot back up draws about 80-85 milliamps, rather than the standard 300+ish. Will post back here if I find out why. This should not affect most users.
– samuelesque
Feb 27 '14 at 21:29
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node.js: read a text file into an array. (Each line an item in the array.)
...al data into an array then wouldn't you also be able to fit it in a string and split it, as has been suggested?
In any case if you would like to process the file one line at a time you can also try something like this:
var fs = require('fs');
function readLines(input, func) {
var remaining = '';...
Mipmap drawables for icons
Since Android 4.3 (Jelly Bean) we can now make use of the res/mipmap folders to store "mipmap" images.
11 Answers
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offsetting an html anchor to adjust for fixed header [duplicate]
...r than where it actually appears on the page, by making it a block element and relatively positioning it. -250px will position the anchor up 250px
a.anchor {
display: block;
position: relative;
top: -250px;
visibility: hidden;
}
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JavaScript code to stop form submission
...mission
<form name="myForm" onsubmit="return validateMyForm();">
and function like
<script type="text/javascript">
function validateMyForm()
{
if(check if your conditions are not satisfying)
{
alert("validation failed false");
returnToPreviousPage();
return false;
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Exclude a sub-directory using find
... @Ravi are you using bash shell? I just tested this on my terminal and it works for me. Try copy and pasting the solution instead if you made modifications to your script.
– sampson-chen
Nov 19 '12 at 19:30
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Smart pointers: who owns the object? [closed]
...a 'slave' for a shared_ptr, can't deallocate
auto_ptr - when the creation and deallocation happen inside the same function, or when the object has to be considered one-owner-only ever. When you assign one pointer to another, the second 'steals' the object from the first.
I have my own implementati...
Javadoc: package.html or package-info.java
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package-info.java: "This file is new in JDK 5.0, and is preferred over package.html."—javadoc - The Java API Documentation Generator
Addendum: The big difference seems to be package annotations. There's a little more in the way of rationale in 7.4 Package Declarations.
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