大约有 30,000 项符合查询结果（耗时：0.0324秒） [XML]
How do you parse and process HTML/XML in PHP?
...n) HTML and it can do XPath queries. It is based on libxml.
It takes some time to get productive with DOM, but that time is well worth it IMO. Since DOM is a language-agnostic interface, you'll find implementations in many languages, so if you need to change your programming language, chances are y...
How to convert std::string to LPCWSTR in C++ (Unicode)
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(Found this question browsing randomly; it's been a long time since I did C++.) So the standard library doesn't have std::string -> std::wstring conversion? That seems weird; is there a good reason?
– Domenic
Jul 29 '09 at 8:41
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How to turn off caching on Firefox?
During development I have to "clear cache" in Firefox all the time in order to make it use the latest version of JavaScript files.
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What is lazy loading in Hibernate?
...ty will be loaded only when you actually accesses the entity for the first time.
The pattern is like this:
public Entity getEntity() {
if (entity == null) {
entity = loadEntity();
}
return entity;
}
This saves the cost of preloading/prefilling all the entities in a large data...
java: ArrayList - how can i check if an index exists?
... I'm going to start at index = 0 and my list.size() == 0 too. so the first time I check it will be true & I'll prep the list to do stuff. but the next time at that index, my index will still be index = 0 and now I am re-initializing that element in the list when I was supposed to be doing stuff....
Pandas groupby: How to get a union of strings
... {random}
dtype: object
Doing this on a whole frame, one group at a time. Key is to return a Series
def f(x):
return Series(dict(A = x['A'].sum(),
B = x['B'].sum(),
C = "{%s}" % ', '.join(x['C'])))
In [14]: df.groupby('A').apply(f)
Out[...
Javascript heredoc
...n it deserve to take advantage of new technologies as they as created over time. That way, new users having the same issue can find "non-archaeological" information here.
– asiby
Oct 9 '18 at 18:26
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How to get function parameter names/values dynamically?
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to save people time , you can get this function from angular via annotate = angular.injector.$$annotate
– Nick
Feb 3 '15 at 17:09
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When to use static vs instantiated classes
... importing a global variable. In PHP, classes are global symbols, so every time you call a static method you rely on a global symbol (the class name). This is a case when global is evil. I had problems with this kind of approach with some component of Zend Framework. There are classes which use stat...
Use tab to indent in textarea
... this code to use 4 spaces instead of a tab? I tried doing   four times but it still converted it into a single space.
– jiaweizhang
Apr 18 '16 at 0:05
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