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This Handler class should be static or leaks might occur: IncomingHandler
...static, it will have a reference to your Service object.
Handler objects for the same thread all share a common Looper object, which they post messages to and read from.
As messages contain target Handler, as long as there are messages with target handler in the message queue, the handler cannot ...
Can I Replace Apache with Node.js?
...e usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wondering if I can replace just Apache with ...
How can I remove a pytz timezone from a datetime object?
...info=None)
Why would you do this? One example is that mysql does not support timezones with its DATETIME type. So using ORM's like sqlalchemy will simply remove the timezone when you give it a datetime.datetime object to insert into the database. The solution is to convert your datetime.datetime o...
Difference between single quotes and double quotes in Javascript [duplicate]
...gle quotes where you want double quotes to appear inside the string (e.g. for html attributes) without having to escape them, or vice versa. Other than that, there is no difference.
However, note that JSON (JavaScript Object Notation) only supports double quoted strings.
...
Center a position:fixed element
... to the screen with a dynamic width and height. I used margin: 5% auto; for this. Without position: fixed; it centers fine horizontally, but not vertically. After adding position: fixed; , it's even not centering horizontally.
...
转：postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ngda老大的资料安装成功postfix（地址在这里http://www.extmail.org/forum/archive/2/0510/563.html）。现在把我安装过程中遇到的问题及解决方法提供给大家，以方便新手。高手就不要看了
说明一下：Q代表安装过程中遇到的问题，或者是...
Why am I not getting a java.util.ConcurrentModificationException in this example?
Note: I am aware of the Iterator#remove() method.
10 Answers
10
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How do I change the language of moment.js?
... deprecated since moment 2.8.0, use locale() instead):
moment.lang("de").format('LLL');
http://momentjs.com/docs/#/i18n/
As of v2.8.1, moment.locale('de') sets the localization, but does not return a moment. Some examples:
var march = moment('2017-03')
console.log(march.format('MMMM')) // '...
Confusion between factor levels and factor labels
There seems to be a difference between levels and labels of a factor in R.
Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows:
...
SQL (MySQL) vs NoSQL (CouchDB) [closed]
I am in the middle of designing a highly-scalable application which must store a lot of data. Just for example it will store lots about users and then things like a lot of their messages, comments etc. I have always used MySQL before but now I am minded to try something new like couchdb or similar w...