大约有 9,000 项符合查询结果（耗时：0.0328秒） [XML]
Are (non-void) self-closing tags valid in HTML5?
... <foo /> means <foo></foo>. This is an XML rule that applies to all XML documents. That said, XHTML is often served as text/html which (historically at least) gets processed by browsers using a different parser than documents served as application/xhtml+xml. The W3C provides compat...
How many bytes does one Unicode character take?
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I believe the maximum Hex value for a 4-byte character is 0xF7 (not 0xF4).
– DJPJ
Sep 22 '16 at 14:18
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How does facebook, gmail send the real time notification?
..., with what appears to be a list of events, and info about them. It's minified though, so is a bit hard to read.
In terms of the actual technology, AJAX is the way to go here, because you can control request timeouts, and many other things. I'd recommend (Stack overflow cliche here) using jQuery t...
Percentage Height HTML 5/CSS
...o the next level.
If you want to make the div height a percentage of the viewport height, every ancestor of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘cont...
background function in Python
...read(target=wait); t.start(); print('end')). I was hoping "background" implied detached as well.
– ThorSummoner
Nov 29 '16 at 0:49
3
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How can I override inline styles with external CSS?
...nly increase the score for specific property, he may be using other properties (not for overriding) in the some block
– Rohit Agrawal
May 29 '13 at 12:11
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enum.values() - is an order of returned enums deterministic
...t's best not to rely on the ordinal position as a serialization mechanism (ie, don't store it in the db) for this reason.
– Matt
Aug 13 '12 at 13:23
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Validate that a string is a positive integer
...ck into a normal decimal string. For really big numbers, this will go to scientific notation, which may break this approach. (I don't quite know where the split is, the details are in the spec, but for whole numbers I believe it's at the point you've exceeded 21 digits [by which time the number has ...
How to implement my very own URI scheme on Android
...;intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="myapp" android:host="path" />...
AI2 SideBar Extension
... here. There are a number of implementations, but I haven't found a sufficiently extensive one and developed one myself. Almost all properties are adjustable. If something is missing, write to me: E-Mail to Ulli. Version history Version Adjustments 1.0 (2021-01-28) Initial version...