大约有 40,000 项符合查询结果（耗时：0.0235秒） [XML]
Why do browsers match CSS selectors from right to left?
...l or whatever and has the one <span> it's trying to style and the 10,000+ rules Gmail puts in its stylesheet (I'm not making that number up).
In particular, in the situation the browser is looking at most of the selectors it's considering don't match the element in question. So the problem b...
How to remove illegal characters from path and filenames?
... I tested five methods from this question (timed loop of 100,000) and this method is the fastest one. The regular expression took 2nd place, and was 25% slower than this method.
– Brain2000
Jul 15 '16 at 15:19
...
How to get the separate digits of an int number?
... toCharArray is MUCH faster than split. I just put both in a loop 1000 times and toCharArray took 20ms and split took 1021ms. I also did it mathematically using divide by ten with mod (%) and it took 50ms doing it that way, so toCharArray appears to be faster than the other two.
...
Convert UTC/GMT time to local time
...
For strings such as 2012-09-19 01:27:30.000, DateTime.Parse cannot tell what time zone the date and time are from.
DateTime has a Kind property, which can have one of three time zone options:
Unspecified
Local
Utc
NOTE If you are wishing to represent a date/ti...
Reading CSV files using C#
...ast CSV reader on a 53Mb file. Looks like the line caching failed after 43,000 rows and scrambled the buffer. Tried the VB TextFieldParser and it did the trick. Thanks
– Gone Coding
May 21 '12 at 12:54
...
CSS: How to position two elements on top of each other, without specifying a height?
...mn: 1;
grid-row: 1;
}
.layer1 span{
color: #fff;
background: #000cf6;
}
.layer2{
background: rgba(255, 0, 0, 0.4);
}
<div class="container_row">
<div class="layer1">
<span>Lorem ipsum...<br>Test test</span>
</div>
<...
ssl_error_rx_record_too_long and Apache SSL [closed]
...
Had this problem with a vhost because 000-default.conf had an unused :443 section without SSLEngine. The Apache log showed this, which got me on the right track: AH01916: Init: (myhost.example.com:443) You configured HTTP(80) on the standard HTTPS(443) port!
...
How might I find the largest number contained in a JavaScript array?
...ou're talking millions of indices.
Average results of five runs with a 100,000-index array of random numbers:
reduce took 4.0392 ms to run
Math.max.apply took 3.3742 ms to run
sorting and getting the 0th value took 67.4724 ms to run
Math.max within reduce() took 6.5804 ms to run
custom findmax func...
Finding duplicate values in MySQL
...hanks for that but on large table it takes some time (about 2mn on more 20'000 entries table) and after show 25 first results, if I click to show next one, phpmyadmin show error "#1052 - Column 'id' in order clause is ambiguous"
– bcag2
Apr 24 at 8:44
...
Twitter Bootstrap alert message close and open again
...x;
margin-bottom: 20px;
padding: 15px;
}
.close {
color: #000;
float: right;
font-size: 21px;
font-weight: bold;
line-height: 1;
opacity: 0.2;
text-shadow: 0 1px 0 #fff;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.j...