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What is the difference between old style and new style classes in Python?
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From New-style and classic classes:
Up to Python 2.1, old-style classes were the only flavour available to the user.
The concept of (old-style) class is unrelated to the concept of type:
if x is an instance of an o...
What is the difference between the hidden attribute (HTML5) and the display:none rule (CSS)?
...lbar. It is similarly incorrect to use this attribute to hide content just from one presentation — if something is marked hidden, it is hidden from all presentations, including, for instance, screen readers.
http://dev.w3.org/html5/spec/Overview.html#the-hidden-attribute
Since CSS can target di...
Does git return specific return error codes?
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From a comment in the source code of builtin/merge.c: "The backend exits with 1 when conflicts are left to be resolved, with 2 when it does not handle the given merge at all."
– Mike
Fe...
Swift Programming: getter/setter in stored property
..."var" keyword fool you! It does mean that there are two entries accessible from the private namespace, but that has no bearing on protected/public and keeps the value of foo valid at all times. This is essentially the "view" pattern. The problem you get with rewriting via didSet, in addition to it h...
Why does this method print 4?
...P, then 0 will be printed. If P requires more space, then we remove frames from the stack, gaining R memory at the cost of cnt++.
When println is finally able to run, X - M - (C - cnt) * R >= P. So if P is large for a particular system, then cnt will be large.
Let's look at this with some exa...
How to check whether an object is a date?
....prototype, which is the reason for the instanceof failure: Date.prototype from frame1 is not part of the prototype chain of Date instances from frame2
– Christoph
Apr 13 '10 at 16:25
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Hibernate: Automatically creating/updating the db tables based on entity classes
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You might try changing this line in your persistence.xml from
<property name="hbm2ddl.auto" value="create"/>
to:
<property name="hibernate.hbm2ddl.auto" value="update"/>
This is supposed to maintain the schema to follow any changes you make to the Model each time ...
How to re-open an issue in github?
...he person who closed it? E.g. is it common for contributors to unsubscribe from notifications as part of closing a bug, or is the default to continue to receive notifications?
– nealmcb
Feb 27 '15 at 16:00
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Fastest way to convert JavaScript NodeList to Array?
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With ES6, we now have a simple way to create an Array from a NodeList: the Array.from() function.
// nl is a NodeList
let myArray = Array.from(nl)
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
...version; You should even be able to copy & paste your views as a whole from your existing interface to the .xib file.
To test this out I created a new empty .xib named "MyCustomTimerView.xib". Then I added a view, and to that added a label and two buttons. Like So:
I created a new objective-...