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Difference between object and class in Scala
...lass or trait.
When you do this, your object needs to extend some trait in order to become an instance of a subclass of it.
Consider the following code:
object A extends B with C {
...
}
This declaration first declares an anonymous (inaccessible) class that extends both B and C, and instantiat...
Why is sizeof considered an operator?
...
Because it is a compile-time operator that, in order to calculate the size of an object, requires type information that is only available at compile-time. This doesn't hold for C++.
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Vim Configure Line Number Coloring
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In order to get the accepted answer to work in my .vimrc I had to follow your advice and add it to the bottom. Can you explain why it has to be at the bottom?
– hidden-username
Oct 11 '15 ...
防挂马：apache禁止访问文件或目录执行权限、禁止运行脚本PHP文件的设置方...
...,配置如下:代码如下:<Directory " var www upload"><FilesMatch " PHP">Order Allow,DenyDe 我们来看俩段通常对上传目录设置无权限的列子,配置如下:
代码如下:
<Directory "/var/www/upload">
<FilesMatch ".PHP">
Order Allow,Deny
Deny from all
</FilesMatch>
...
The maximum value for an int type in Go
...s additional math and bounds-checking to be performed by the processor, in order to emulate the larger or smaller integer. With that in mind, be aware that the performance of the processor (or compiler's optimised code) is almost always going to be better than adding your own bounds-checking code, s...
Sort an array in Java
...ays.sort(array);
System.out.println(Arrays.toString(array));
// in reverse order
for (int i = array.length - 1; i >= 0; i--)
System.out.print(array[i] + " ");
System.out.println();
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How to keep the console window open in Visual C++?
... version 2012 - I haven't yet tested 2013). This bug is detailed here.
In order to have the console pause after program termination on a makefile project, perform these steps (this may differ for versions other than 2010 - 2012):
1) Pass /SUBSYSTEM:CONSOLE to the linker. - EDIT: see below.
2) Ope...
How do I reattach to a detached mosh session?
...was checkpointed (the binary will resume, but communication will stop).
In order to fix this, you need to tell mosh to stop doing that and download the mosh source code. Then, edit this file:
cd mosh
vim configure.ac
Then, search for GETTIME and comment out that line.
Then do:
autoreconf # or ./a...
What are the differences between git branch, fork, fetch, merge, rebase and clone?
... there needs to be a way to 'know' about those branches and their names in order to be able to pull them down locally. This is done via a git fetch which will get all new and changed branches into the locally repository using the tracking branches (e.g., origin/). Once fetched, one can git branch ...
How do I create and read a value from cookie?
...er to maintain. 2. More complete (is the only answer to accept secure, any order of arguments, max-age). 3. More standard defaults (path etc defaults to the standard, unlike most answers here). 4. Best practice (according to MDN, the regex is the most reliable way to extract the values). 5. Futurepr...