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Why em instead of px?
...tter choice than the other (or both wouldn't have been given their own purpose in the spec). It may even be worth noting that StackOverflow makes extensive use of px units. It is not the poor choice Spoike was told it was.
Definition of units
px is an absolute unit of measurement (like in, pt, ...
What is the difference between Google App Engine and Google Compute Engine?
...wn virtual machine instances. It gives you more flexibility and generally costs much less than App Engine. The drawback is that you have to manage your app and virtual machines yourself.
Read more about Compute Engine
You can mix both App Engine and Compute Engine, if necessary. They both work wel...
ContinuousSpeech 连续语音识别扩展：持续语音识别无需重复启动 · App Inventor 2 中文网
...
部分结果 OnPartialResult(文本)
每识别完大约一个单词后触发此事件，提供中间识别结果。可用于实现实时命令检测。
Text：当前识别到的部分文本
识别结果 OnResult(文本)
当检测到说话暂停时触发此...
Multithreading: What is the point of more threads than cores?
...
The answer revolves around the purpose of threads, which is parallelism: to run several separate lines of execution at once. In an 'ideal' system, you would have one thread executing per core: no interruption. In reality this isn't the case. Even if you hav...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
...sing System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Util;
using Android.Views;
using Android.Widget;
using Java.Lang;
using Android.Support.V4.View;
using Fragment = Android.App.Fragment;
namespace Support4
{
[Activity (Label = "...
Updating packages in Emacs
...resh-contents unconditionally tries to download a package list from all repos you've added to package-archives; package-archive-contents is non nil if you have already downloaded the package list.
ELPA is the original. I don't think it's really maintained anymore, but I'm not sure. I don't use it....
Difference between sh and bash
...or the Shell Command Language) is a programming language described by the POSIX
standard.
It has many implementations (ksh88, dash, ...). bash can also be
considered an implementation of sh (see below).
Because sh is a specification, not an implementation, /bin/sh is a symlink
(or a hard link) to a...
Just what is Java EE really? [closed]
...nction outside of the application server environment?
Actually they can. Most of the libraries can be directly used standalone (in Java SE) or included in a .war (practically that's nearly always Tomcat). Some parts of Java EE, like JPA, have explicit sections in their respective specifications tha...
How exactly does CMake work?
...ed files do.
CMake introduces a lot of complexity into the build system, most of which only pays off if you use it for building complex software projects.
The good news is that CMake does a good job of keeping a lot of this messiness away from you: Use out-of-source builds and you don't even have ...
Difference between DateTime and Time in Ruby
...DateTime and Time classes in Ruby and what factors would cause me to choose one or the other?
7 Answers
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