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使用 XML 和 Web 服务 · App Inventor 2 中文网
...b.XMLTextDecode takes a given XML text string and decodes it to produce a list. If the text is not well-formed XML, it will signal an error and return the empty list.
The list returned by XMLTextDecode contains one pair for each top-level tag-delimited structure in the input string. For example...
What does void* mean and how to use it?
...ing others' code, I saw something like void *func(void* i); , what does this void* mean here for the function name and for the variable type, respectively?
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Is functional GUI programming possible? [closed]
...mature, or more experimental purely functional/declarative approaches to GUIs, mostly in Haskell, and primarily using functional reactive programming.
Some examples are:
reflex-platform, https://github.com/reflex-frp/reflex-platform
grapefruit, http://hackage.haskell.org/package/grapefruit-ui-gtk...
How do I get a value of datetime.today() in Python that is “timezone aware”?
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In the standard library, there is no cross-platform way to create aware timezones without creating your own timezone class.
On Windows, there's win32timezone.utcnow(), but that's part of pywin32. I would rather suggest to use the pytz library, which has a...
log4j vs logback [closed]
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Logback natively implements the SLF4J API. This means that if you are using logback, you are actually using the SLF4J API. You could theoretically use the internals of the logback API directly for logging, but that is highly discouraged. All logback documentation and ex...
ReactJS Two components communicating
.... A few example scenarios that come to mind right now:
<Filters /> is a child component of <List />
Both <Filters /> and <List /> are children of a parent component
<Filters /> and <List /> live in separate root components entirely.
There may be other scenario...
Is Java's assertEquals method reliable?
I know that == has some issues when comparing two Strings . It seems that String.equals() is a better approach. Well, I'm doing JUnit testing and my inclination is to use assertEquals(str1, str2) . Is this a reliable way to assert two Strings contain the same content? I would use assertTr...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
What is the difference between Class.forName() and Class.forName().newInstance() ?
9 Answers
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What is an API key? [closed]
I see this word in almost every cross service application these days.
6 Answers
6
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Do we need type=“text/css” for in HTML5 [duplicate]
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The HTML5 spec says that the type attribute is purely advisory and explains in detail how browsers should act if it's omitted (too much to quote here). It doesn't explicitly say that an omitted type attribute is either valid or invalid, but you can safely omit it knowi...