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Are different ports on the same server considered cross-domain? (Ajax-wise)
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For two documents to be considered to have the same origin, the protocol (http/https), the domain and the port (the default 80 or :xx) have to be indentical.
So no, you cannot use xhr against a different port.
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Creating a copy of an object in C# [duplicate]
...her case you will have to write some code.
For big objects you could consider Serialization + Deserialization (through a MemoryStream), just to reuse existing code.
Whatever the method, think carefully about what "a copy" means exactly. How deep should it go, are there Id fields to be excepted e...
Django: reverse accessors for foreign keys clashing
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Fastest way to convert an iterator to a list
... that there is no better way in python. It's tedious to have to edit both sides of an expression only to be able to slice or index it. (very common in python3, if it's a pure expression like zip, or map with a pure function)
– Jo So
Oct 24 '15 at 5:29
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Matplotlib connect scatterplot points with line - Python
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In addition to what provided in the other answers, the keyword "zorder" allows one to decide the order in which different objects are plotted vertically.
E.g.:
plt.plot(x,y,zorder=1)
plt.scatter(x,y,zorder=2)
plots the scatter symbols on top of ...
How do I programmatically force an onchange event on an input?
...e dispatchEvent method of the element:
var element = document.getElementById('just_an_example');
var event = new Event('change');
element.dispatchEvent(event);
This will trigger event listeners regardless of whether they were registered by calling the addEventListener method or by setting the onc...
How to specify an array of objects as a parameter or return value in JSDoc?
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What is the best way to clear a session variable in rails?
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由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...IFO、LRU、LFU都是比较经典的换页算法。相关内容参看Wikipeida的缓存算法。
3）缓存的重建和持久化。缓存在内存，系统总要维护，所以，缓存就会丢失，如果缓存没了，就需要重建，如果数据量很大，缓存重建的过程会很慢，这...
XPath with multiple conditions
...and author[starts-with(.,'James Small')]]
It is a good rule to try to avoid using the // pseudo-operator whenever possible, because its evaluation can typically be very slow.
Also:
./somename
is equivalent to:
somename
so it is recommended to use the latter.
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