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Vertically align text within a div [duplicate]
The code below (also available as a demo on JS Fiddle ) does not position the text in the middle, as I ideally would like it to. I cannot find any way to vertically centre text in a div , even using the margin-top attribute. How can I do this?
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
...ot a couple of duplicates in a database that I want to inspect, so what I did to see which are duplicates, I did this:
10 A...
A semantics for Bash scripts?
...s own right, but with features designed to make it easy to interact specifically with the operating system and filesystem. The POSIX shell's (hereafter referred to just as "the shell") semantics are a bit of a mutt, combining some features of LISP (s-expressions have a lot in common with shell word ...
Auto start node.js server on boot
...s super easy module that installs a node script as a windows service, it's called node-windows (npm, github, documentation). I've used before and worked like a charm.
var Service = require('node-windows').Service;
// Create a new service object
var svc = new Service({
name:'Hello World',
descr...
How do I count a JavaScript object's attributes? [duplicate]
...ery object in JavaScript derives from — includes many attributes automatically, and the exact set of attributes you get depends on the particular interpreter and what code has executed before yours. So, you somehow have to separate the ones you defined from those you got "for free."
Here's one wa...
defaultdict of defaultdict?
...gument of a defaultdict (in this case is lambda: defaultdict(int)) will be called when you try to access a key that doesn't exist. The return value of it will be set as the new value of this key, which means in our case the value of d[Key_doesnt_exist] will be defaultdict(int).
If you try to access...
Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
...te development into two file types. One is with an extension of .h and we call this a "header file." They usually provide a declaration of functions, classes, structs, global variables, typedefs, preprocessing macros and definitions, etc. Basically, they just provide you with information about yo...
Load a WPF BitmapImage from a System.Drawing.Bitmap
...Warning: This leaks a GDI handle every single time it's used, so after 10k calls it will stop working (65k if you're lucky). As documented in GetHbitmap, you absolutely must p/invoke DeleteObject on that handle.
– Roman Starkov
Dec 28 '11 at 0:24
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Example: Communication between Activity and Service using Messaging
...vice example.
Your Service returns an instance of itself to consumers who call onBind. Then you can directly interact with the service, e.g. registering your own listener interface with the service, so that you can get callbacks.
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How to validate IP address in Python? [duplicate]
...hings like "4" and "192.168" and silently pads the rest with zeros. Technically valid, I'm sure, but not quite what I expected.
– krupan
Nov 25 '08 at 23:58
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