大约有 9,220 项符合查询结果（耗时：0.0230秒） [XML]
Difference between DateTime and Time in Ruby
...value describing the number of seconds since January 1, 1970 UTC, a thin wrapper around a POSIX-standard time_t value, and is bounded:
Time.at(0x7FFFFFFF)
# => Mon Jan 18 22:14:07 -0500 2038
Time.at(-0x7FFFFFFF)
# => Fri Dec 13 15:45:53 -0500 1901
Newer versions of Ruby are able to handle l...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
... described. There are some benefits. But, IMO, "always" rules don't always apply. So I don't wholly support
Always use a { } block - even for a single line // not OK, why ???
I'm not saying always use a {} block. If it's a simple enough condition & behavior, don't. If you suspect someone m...
Left Align Cells in UICollectionView
...iple cells of differing widths on a line. According to:
https://developer.apple.com/library/content/documentation/WindowsViews/Conceptual/CollectionViewPGforIOS/UsingtheFlowLayout/UsingtheFlowLayout.html
...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...ype detection, or "data sniffing," refers to the process of determining an appropriate MIME type from binary data. The final result depends on a combination of server-supplied MIME type headers, file extension, and/or the data itself. Usually, only the first 256 bytes of data are significant.
So,...
What is the difference between the states selected, checked and activated in Android?
...ld).setChecked(mCheckStates.get(position));
} else if (getContext().getApplicationInfo().targetSdkVersion
>= android.os.Build.VERSION_CODES.HONEYCOMB) {
child.setActivated(mCheckStates.get(position));
}
}
Note the mCheckStates variable. It keeps track of which positi...
Framework vs. Toolkit vs. Library [duplicate]
...the things they can do without you asking is owning the control flow of an application. I think @Sridhar-Sarnobat's answer is probably better
– neuron
Apr 5 '16 at 16:27
add a...
How do you Encrypt and Decrypt a PHP String?
...et a 16, 24, or 32 character random string in the
key option of the config/app.php file. Otherwise, encrypted values
will not be secure.
When to use EntityManager.find() vs EntityManager.getReference() with JPA
...
@Arthur Ronald what happens if there is a Version annotation in the entity called by getReference?
– David Hofmann
Mar 25 '16 at 13:28
...
Logging levels - Logback - rule-of-thumb to assign log levels
...soon be) and the fix probably requires human intervention. The "2AM rule" applies here- if you're on call, do you want to be woken up at 2AM if this condition happens? If yes, then log it as "error".
warn: an unexpected technical or business event happened, customers may be affected, but probably ...
Is XSLT worth it? [closed]
...f your team working with just XML.
A real world use case: I just wrote an app which handles in-memory XML docs throughout the system, and transforms to JSON, HTML, or XML as requested by the end user. I had a fairly random request to provide as Excel data. A former colleague had done something simi...