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How do I include negative decimal numbers in this regular expression?
...itive values, but I want it to also allow negative values e.g. -10, -125.5 etc.
14 Answers
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Why use prefixes on member variables in C++ classes
...wish to make the type clear, I use standard suffixes (e.g. List, ComboBox, etc).
This makes the programmer aware of the usage of the variable whenever they see/use it. Arguably the most important case is "p" for pointer (because the usage changes from var. to var-> and you have to be much more c...
Do you need to use path.join in node.js?
...the given pathes come from unknown sources (eg. user input, 3rd party APIs etc.).
So path.join('a/','b') path.join('a/','/b'), path.join('a','b') and path.join('a','/b') will all give a/b.
Without using it, you usually would make expectations about the start and end of the pathes joined, knowing...
Android: Background Image Size (in Pixel) which Support All Devices
...main problem/challenge with android, there is no set size for hdpi, xhdpi, etc. because each manufacture can make a different sized phone/tablet, unlike IOS where only apple makes it. Look at section on range: developer.android.com/guide/practices/…
– toidiu
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Using SASS with ASP.NET [closed]
...e sassc.exe).
NSass: a .Net wrapper.
Node-Sass: to use Libsass on Node.js.
etc.
Compass is a framework for Sass that add a lot of useful helpers (like image spriting) and can also compile your SCSS/Sass. But you need to install Ruby on each development environment where you need to compile your ...
Is mongodb running?
...| grep mongo | grep -v grep # "ps" flags may differ on your OS
or
/etc/init.d/mongodb status # for MongoDB version < 2.6
/etc/init.d/mongod status # for MongoDB version >= 2.6
or
service mongod status
to see if mongod is running (you need to be root to do this, or...
How to remove all white spaces in java [duplicate]
...remove anything that is a space character (including space, tab characters etc). You need to escape the backslash in Java so the regex turns into \\s. Also, since Strings are immutable it is important that you assign the return value of the regex to a.
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What's the difference between echo, print, and print_r in PHP?
...ngs are not quoted, type information is omitted, array sizes aren't given, etc.
var_dump is usually more useful than print_r when debugging, in my experience. It's particularly useful when you don't know exactly what values/types you have in your variables. Consider this test program:
$values = ar...
How to run Nginx within a Docker container without halting?
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Thanks! To clarify, that means editing /etc/nginx/nginx.conf and adding "daemon off;" at the top (i.e. not inside a server or other directive)
– Seldo
Sep 17 '13 at 23:12
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How do you get the list of targets in a makefile?
...a 20), those where you can optionally install it (e.g., Ubuntu 14, with . /etc/bash_completion), and those that don't support it at all (e.g., OSX 10.9)
– mklement0
Oct 13 '14 at 11:23
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