大约有 16,000 项符合查询结果（耗时：0.0227秒） [XML]
What .NET collection provides the fastest search
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@Brian: good point. I was assuming (baselessly) Record.Key was a builtin type of some kind.
– Jimmy
Jun 17 '09 at 19:59
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Most efficient way to reverse a numpy array
...onstructing a 1d array, transforming it into a 2d array, flipping it, then converting back into a 1d array. time.clock() will be used to keep time, which is presented in terms of seconds.
import time
import numpy as np
start = time.clock()
x = np.array(range(3))
#transform to 2d
x = np.atleast_2d(...
Postgres NOT in array
... it with coalesce(), e.g.
(some_value != ALL(coalesce(some_array, array[]::int[])))
Or
NOT (some_value = ANY(coalesce(some_array, array[]::int[])))
From the docs:
If the array expression yields a null array, the result of ANY will be null
If the array expression yields a null array, the result of...
JavaScript data formatting/pretty printer
...t')
{
if (value instanceof Array)
{
// Just let JS convert the Array to a string!
value = "[ " + value + " ]";
}
else
{
// Recursive dump
// (replace " " by "\t" or something else if you prefer)
var od = DumpObjectIndented(va...
Sort array of objects by object fields
...ber > $second->number;
});
UPDATED
with the string don't forget to convert to the same register (upper or lower)
// Desc sort
usort($array,function($first,$second){
return strtolower($first->text) < strtolower($second->text);
});
// Asc sort
usort($array,function($first,$secon...
cURL equivalent in Node.js?
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This site can convert your cURL command to node.js request: curl.trillworks.com/#node
– Maxim Mai
Jan 13 '16 at 20:34
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Store output of subprocess.Popen call in a string
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This does produce some weird object. When I convert it to string, it escapes whitespace like \n.
– Tomáš Zato - Reinstate Monica
Nov 26 '16 at 18:13
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How to display Toast in Android?
...Toast.LENGTH_LONG).show();
We can define two constants for duration:
int LENGTH_LONG Show the view or text notification for a long period
of time.
int LENGTH_SHORT Show the view or text notification for a short period
of time.
Customizing your toast
LayoutInflater myInflater...
Newline in string attribute
... Works even inside a binding parameter when adding a backslash like: ConverterParameter='Test\&#x0a;Text'
– Sven
Apr 23 '15 at 15:28
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AngularJS passing data to $http.get request
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This works but the params object is being converted into String. How do i retain the original object?
– wdphd
Mar 2 '15 at 16:23
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