大约有 5,100 项符合查询结果（耗时：0.0381秒） [XML]
How to loop through array in jQuery?
...the array has 15 elements in total but their indexes are strewn across the range 0 to 150,000 for some reason, and so the length is 150,001), and if you use appropriate safeguards like hasOwnProperty and checking the property name is really numeric (see link above), for..in can be a perfectly reason...
Insert Unicode character into JavaScript
... years later, people use these things called "emoji" outside of the U+FFFF range. JavaScript has too, so you can do this. var poop = '\u{1F4A9}';
– User that is not a user
Oct 14 '17 at 0:40
...
How to initialize a JavaScript Date to a particular time zone
...educe the data set, either by which time zones are supported and/or by the range of dates you can work with.
Here are the libraries to consider:
Intl-based Libraries
New development should choose from one of these implementations, which rely on the Intl API for their time zone data:
Luxon (succ...
Servlet for serving static content
...s with caching, ETag, If-None-Match and If-Modified-Since (but no Gzip and Range support; just to keep it simple; Gzip could be done with a filter or via container configuration).
public abstract class StaticResourceServlet extends HttpServlet {
private static final long serialVersionUID = 1L;...
If vs. Switch Speed
...tax so can generate "switch" like statements internally that have a mix of ranges, single targets, etc -- and they can (and do) do this for both switch and if..else statements.
Anyhoo, an extension to Konrad's answer is that the compiler may generate a jump table, but that's not necessarily guarant...
How to vertically center a container in Bootstrap?
...e use of Flexible box layout. Nowadays, this method is supported in a wide range of web browsers except Internet Explorer 8 & 9. Therefore we'd need to use some hacks/polyfills or different approaches for IE8/9.
In the following I'll show you how to do that in only 3 lines of text (regardless o...
How many bytes does one Unicode character take?
...
Strangely enough, nobody pointed out how to calculate how many bytes is taking one Unicode char. Here is the rule for UTF-8 encoded strings:
Binary Hex Comments
0xxxxxxx 0x00..0x7F Only byte of a 1-byte characte...
How does facebook, gmail send the real time notification?
...server push
alert(msg.content);
}
});
icomet supports a wide range of Browsers and OSes, including Safari(iOS, Mac), IEs(Windows), Firefox, Chrome, etc.
share
|
improve this answer
...
Select random lines from a file
...read(65536)
if not buffer: break
count += buffer.count('\n')
for i in range(10):
f.readline(random.randint(1, count))
This got me just under a minute:
$ time ./shuf.py
./shuf.py 42.57s user 16.19s system 98% cpu 59.752 total
I did this on a Lenovo X1 extreme 2nd gen wit...
Difference between int32, int, int32_t, int8 and int8_t
...
@barlop: Yes. (Both C and C++ mandate a minimum range of 255 values for char, so it requires at least 8 bits, but can be more).
– Jerry Coffin
Oct 19 '15 at 21:33
...