大约有 40,000 项符合查询结果(耗时:0.0707秒) [XML]
Where is the “Fold” LINQ Extension Method?
...is in part a consequence of picking a stupid name -- though not as bad as "select" for "map" -- and ignoring existing functional technology. As for Aggregate being a more familiar term in the OO realm ... no, not at all.
– Jim Balter
Aug 23 '13 at 23:16
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Can't install nuget package because of “Failed to initialize the PowerShell host”
...-Version 7.0.1 to install specific version of the package. Don't forget to select Default Project in the top of the Package Manager Console
– Lu55
Apr 2 '16 at 9:18
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Push existing project into Github
...s for your existing project.
"Add New Local Repository" in repositories.
Select your existing folder. It'll ask if you want to do that, say yes.
Once done, you'll see a list of all your files, etc. Commit them.
Go to Repositories and Publish (this will create the new repo on GitHub for you, if yo...
How to decide font color in white or black depending on background color?
... @mwieczorek people who rely on user-generated content or randomly selected colors do.
– Marc Plano-Lesay
Sep 15 '18 at 12:54
add a comment
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Setting Corner Radius on UIImageView not working
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In Xcode Interface Builder, selecting 'Clip Subviews' Drawing attribute for the view together with setting the corner radius in the code cell.previewImage.layer.cornerRadius = 20;does the job for me!
See 'Clip Subviews' option in IB
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Given a number, find the next higher number which has the exact same set of digits as the original n
...g order, there's no bigger number to be made without adding digits.)
B.1. Select the last digit of the first sequence:
3472(2) 641
B.2. Find the smallest digit in the second sequence that is larger than it:
3472(2) 6(4)1
B.3. Swap them:
3472(2) 6(4)1
->
3472(4) 6(2)1
->
34724 621
C. ...
What makes Lisp macros so special?
...could write a macro that lets you say something like:
(setvar *rows* (sql select count(*)
from some-table
where column1 = "Yes"
and column2 like "some%string%")
And thats not even getting into Reader macros.
Hope this helps.
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Is there a NumPy function to return the first index of something in an array?
...st element. Note also that where and nonzero return arrays, so you need to select the first element to get the index.
In [71]: np.argmax(a==2)
Out[71]: 2
In [72]: np.where(a==2)
Out[72]: (array([2], dtype=int64),)
In [73]: np.nonzero(a==2)
Out[73]: (array([2], dtype=int64),)
Time comparison
Ju...
Android customized button; changing text color
...color for your button, just like you did for background, for example:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Focused and not pressed -->
<item android:state_focused="true"
android:state_pressed="false"
android:color="...
Test for existence of nested JavaScript object key
...th Claudiu's modification which is also significantly more performant than selected answer. See jsperf here jsperf.com/check-if-deep-property-exists-with-willnotthrow
– netpoetica
Nov 27 '14 at 5:35
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