大约有 38,000 项符合查询结果（耗时：0.0541秒） [XML]
jQuery: Adding two attributes via the .attr(); method
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Oct 22 '12 at 15:10
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Delete all documents from index/type without deleting type
...something like this (using your example):
curl -XDELETE 'http://localhost:9200/twitter/tweet/_query' -d '{
"query" : {
"match_all" : {}
}
}'
Or you could just delete the type:
curl -XDELETE http://localhost:9200/twitter/tweet
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WPF: How to display an image at its original size?
...g out that if the image's DPI is different from the monitor's DPI (usually 96), WPF will automatically resize the image, as it tries to be DPI-independent.
EDIT
The MSDN link is broken, here is the new link:
MSDN Blog - Blurry Bitmaps. Let's keep the old link around to be used for archive.org, i...
How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
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199
You can use strcmp:
break x:20 if strcmp(y, "hello") == 0
20 is line number, x can be any fi...
How to convert a LocalDate to an Instant?
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edited Jan 1 '19 at 10:05
answered May 27 '14 at 9:48
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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
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answered Jun 19 '12 at 17:03
Peter BrownPeter Brown
48k1616 gold badges103103 silver badges140140 bronze badges
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How to search in array of object in mongodb
...ay is:
db.users.find({awards: {$elemMatch: {award:'National Medal', year:1975}}})
$elemMatch allows you to match more than one component within the same array element.
Without $elemMatch mongo will look for users with National Medal in some year and some award in 1975s, but not for users with Na...
How to set enum to null
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MikeTheLiar
3,97299 gold badges3939 silver badges6363 bronze badges
answered Dec 2 '10 at 16:23
Rodney S. FoleyRodn...
How to empty/destroy a session in rails?
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answered Mar 9 '10 at 0:06
GdeglinGdeglin
11.8k55 gold badges4646 silver badges6464 bronze badges
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Crontab Day of the Week syntax
... Sunday
Graphically:
┌────────── minute (0 - 59)
│ ┌──────── hour (0 - 23)
│ │ ┌────── day of month (1 - 31)
│ │ │ ┌──── month (1 - 12)
│ │ │ │ ┌── day of week (0 - 6 => Sunday - Saturday, or
│...