大约有 40,000 项符合查询结果（耗时：0.0394秒） [XML]
What is the apply function in Scala?
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Muhammad Hewedy
25.1k4141 gold badges114114 silver badges198198 bronze badges
answered Mar 16 '12 at 14:14
Vlad GudimVlad Gudim
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how to make a whole row in a table clickable as a link?
...lt;td>Blah Blah</td> <td>1234567</td> <td>£158,000</td>
</tr>
</tbody>
jQuery(document).ready(function($) {
$(".clickable-row").click(function() {
window.location = $(this).data("href");
});
});
Of course you don't have to use href...
How to echo with different colors in the Windows command line
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Community♦
111 silver badge
answered Jul 27 '16 at 15:22
Jens A. KochJens A. Koch
32.1k99...
What's up with Java's “%n” in printf?
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In java, \n always generate \u000A linefeed character. To get correct line separator for particular platform use %n.
So use \n when you are sure that you need \u000A linefeed character, for example in networking.
In all other situations use %n
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generate days from date range
..., procedures, or temp tables. The subquery generates dates for the last 10,000 days, and could be extended to go as far back or forward as you wish.
select a.Date
from (
select curdate() - INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) ) DAY as Date
from (select 0 as a union all s...
How to use double or single brackets, parentheses, curly braces
...to evaluate quite a lot quicker than single ones.
$ time for ((i=0; i<10000000; i++)); do [[ "$i" = 1000 ]]; done
real 0m24.548s
user 0m24.337s
sys 0m0.036s
$ time for ((i=0; i<10000000; i++)); do [ "$i" = 1000 ]; done
real 0m33.478s
user 0m33.478s
sys 0m0.000s
The braces, in ...
Why is printing to stdout so slow? Can it be sped up?
...writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines.
However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to write, but extrapolating from the previous, it would take ov...
Get String in YYYYMMDD format from JS date object?
...g. in GMT+1: (new Date(2013,13, 25)).toISOString() == '2013-12-24T23:00:00.000Z'
– weberste
Dec 12 '13 at 10:23
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What scalability problems have you encountered using a NoSQL data store? [closed]
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My current project actually.
Storing 18,000 objects in a normalised structure: 90,000 rows across 8 different tables. Took 1 minute to retrieve and map them to our Java object model, that's with everything correctly indexed etc.
Storing them as key/value pairs usi...
Parallel.ForEach vs Task.Factory.StartNew
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I did a small experiment of running a method "1,000,000,000 (one billion)" times with "Parallel.For" and one with "Task" objects.
I measured the processor time and found Parallel more efficient. Parallel.For divides your task in to small work items and executes them on a...