大约有 46,000 项符合查询结果(耗时:0.0734秒) [XML]
How do I get the number of elements in a list?
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answered Nov 11 '09 at 0:33
gnudgnud
70.2k55 gold badges5454 silver badges7676 bronze badges
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What is the equivalent of MATLAB's repmat in NumPy
...matlab
– vernomcrp
Nov 12 '09 at 19:11
2
np.tile(a[:,np.newaxis],[1,1,2]) - it gives the same. Pr...
is_file or file_exists in PHP
...o 10k. The result is:
when the file exists:
is_file x 10000 1.5651218891144 seconds
file_exists x 10000 1.5016479492188 seconds
is_readable x 10000 3.7882499694824 seconds
when the file does not exist:
is_file x 10000 0.23920488357544 seconds
file_exists x 10000 0.22103786468506 seconds ...
How to check if a function exists on a SQL database
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answered Mar 24 '11 at 12:30
Martin SmithMartin Smith
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Why are the Level.FINE logging messages not showing?
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answered Jun 11 '11 at 11:53
Vineet ReynoldsVineet Reynolds
71.3k1616 gold badges140140 silver badges171171 bronze badges
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HTTP POST Returns Error: 417 “Expectation Failed.”
...brary/debx8sh9.aspx
– Eugene
Jan 7 '11 at 21:47
25
You can also specify that property in your app...
How to parse float with two decimal places in javascript?
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edited Mar 11 '13 at 16:09
bob esponja
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How does a ArrayList's contains() method evaluate objects?
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ChristopheCVBChristopheCVB
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How to read a file without newlines?
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answered Sep 8 '12 at 11:57
BakuriuBakuriu
80.4k1616 gold badges164164 silver badges194194 bronze badges
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setState vs replaceState in React.js
...y example:
// let's say that this.state is {foo: 42}
this.setState({bar: 117})
// this.state is now {foo: 42, bar: 117}
this.setState({foo: 43})
// this.state is now {foo: 43, bar: 117}
this.replaceState({baz: "hello"})
// this.state. is now {baz: "hello"}
Take note of this from the docs, t...
