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Need some clarification about beta/alpha testing on the developer console
...ing, closed testing, pausing tracks and stage rollouts, don't get confused by these terms.
1. Open testing - It means that you don't need to invite them, like no need to take their Gmail and add it to the user list. (Beta testing)
2. Closed testing - It means that you need to specifically add the us...
How can I determine whether a Java class is abstract by reflection
...a Jar file and wish to find those which are not abstract. I can solve this by instantiating the classes and trapping InstantiationException but that has a performance hit as some classes have heavy startup. I can't find anything obviously like isAbstract() in the Class.java docs.
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What is the difference between print and puts?
...a newline after each argument. That's a key point and not clear from the Ruby docs (since the example has only 1 argument).
– cdunn2001
Jul 29 '12 at 23:49
3
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Order discrete x scale by frequency/value
...ed in alphabetical order, but I need to rearrange it so that it is ordered by the value of the y-axis (i.e., the tallest bar will be positioned on the left).
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How to pull a random record using Django's ORM?
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Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database.
from django.db.models.aggregates import Count
from random ...
Difference between sh and bash
...sh
sh (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 li...
How do I make $.serialize() take into account those disabled :input elements?
It seems by default disabled input elements are ignored by $.serialize() . Is there a workaround?
9 Answers
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How to run Node.js as a background process and never die?
...t of those backgrounded processes. And you can kill a backgrounded process by running kill %1 or kill %2 with the number being the index of the process.
Powerful solution (allows you to reconnect to the process if it is interactive):
screen
You can then detach by pressing Ctrl+a+d and then atta...
jQuery find element by data attribute value
...ndants of each element
in the current set of matched elements, filtered by a selector, jQuery object, or element.
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Ukkonen's suffix tree algorithm in plain English
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The following is an attempt to describe the Ukkonen algorithm by first showing what it does when the string is simple (i.e. does not contain any repeated characters), and then extending it to the full algorithm.
First, a few preliminary statements.
What we are building, is basically ...