大约有 47,000 项符合查询结果(耗时:0.0464秒) [XML]

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In jQuery, how do I get the value of a radio button when they all have the same name?

...r code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked. $("#submit").click(() => { const val = $('input[name=q12_3]:checked').val(); alert(val); }); <script src="https://...
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How to convert list of tuples to multiple lists?

... function zip() will almost do what you want: >>> zip(*[(1, 2), (3, 4), (5, 6)]) [(1, 3, 5), (2, 4, 6)] The only difference is that you get tuples instead of lists. You can convert them to lists using map(list, zip(*[(1, 2), (3, 4), (5, 6)])) ...
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Remove duplicate elements from array in Ruby

... the Tin Man 147k3131 gold badges192192 silver badges272272 bronze badges answered Dec 3 '11 at 5:24 Mithun Sasidharan...
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Using numpy to build an array of all combinations of two arrays

... 131 In newer version of numpy (>1.8.x), numpy.meshgrid() provides a much faster implementation: ...
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What's the difference between “mod” and “remainder”?

... is a difference between modulus and remainder. For example: -21 mod 4 is 3 because -21 + 4 x 6 is 3. But -21 divided by 4 gives -5 with a remainder of -1. For positive values, there is no difference. share | ...
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Programmatically obtain the Android API level of a device?

... Vivek 8,4861313 gold badges7070 silver badges9999 bronze badges answered Nov 2 '14 at 11:01 Arkadiusz Cieślińsk...
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How do you rotate a two dimensional array?

... 63 Answers 63 Active ...
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Validating IPv4 addresses with regexp

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Frequency table for a single variable

... 153 Maybe .value_counts()? >>> import pandas >>> my_series = pandas.Series([1,2,2...
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How to return a part of an array in Ruby?

...#=> nil a[1, 2] #=> [ "b", "c" ] a[1..3] #=> [ "b", "c", "d" ] a[4..7] #=> [ "e" ] a[6..10] #=> nil a[-3, 3] #=> [ "c", "d", "e" ] # special cases a[5] ...