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Should I impose a maximum length on passwords?
... length is to prevent easy to guess passwords. There is no purpose for a maximum length.
The obligatory XKCD explaining why you're doing your user a disservice if you impose a max length:
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In JPA 2, using a CriteriaQuery, how to count results
...teQuery(cq).getSingleResult();
Obviously you will want to build up your expression with whatever restrictions and groupings etc you skipped in the example.
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How to make an ImageView with rounded corners?
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Javascript event handler with parameters
...ers. The problem is that the function doesn't get the element. Here is an example:
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How to write one new line in Bitbucket markdown?
...wish they'd also implement the backslash solution.
– x-yuri
Jun 8 at 10:59
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通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...这些问题时，经常使用的一种简单手段。ulimit 是一种 linux 系统的内键功能，它具有一套参数集，用于为由它生成的 shell 进程及其子进程的资源使用设置限制。本文将在后面的章节中详细说明 ulimit 的功能，使用以及它的影响，...
How to check if a value exists in an array in Ruby
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Alternate syntax: %w(Cat Dog Bird).include? 'Dog'
– scarver2
Dec 18 '12 at 22:04
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How do you get centered content using Twitter Bootstrap?
I'm trying to follow a very basic example. Using the starter page and the grid system , I was hoping the following:
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How to send only one UDP packet with netcat?
...and incompatibilities of netcat.
This also works sending to other hosts, ex:
echo -n "hello" >/dev/udp/remotehost/8000
These are not "real" devices on the file system, but bash "special" aliases. There is additional information in the Bash Manual.
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Android.app Fragments vs. android.support.v4.app using ViewPager?
...ion regarding the Android Support Libraries, Fragments, and as a specific example, the ViewPager class. My intention is to create an app with similar functionality to the sample provided on the Android Developer website ( http://developer.android.com/training/animation/screen-slide.html or http...