大约有 40,000 项符合查询结果(耗时:0.0515秒) [XML]

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Node.js Mongoose.js string to ObjectId function

...those who are attempting to do this, this is a much better answer than the selected answer because it will not transform the id if you are already using a mongo id. – ed209 May 19 '15 at 13:34 ...
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Jquery live() vs delegate() [duplicate]

...ple, every single click on the entire document has to be compared with the selector a.myClass to see if it matches. With delegate, that is only the elements within #containerElement. This will obviously improve performance. Finally, live requires that your browser looks for a.myClass whether or n...
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Eclipse: have the same file open in two editors?

... Right click on your editor tab and select "New Editor". ... unless you have a newer version of eclipse, in which case do Window -> New Editor. share | i...
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How Big can a Python List Get?

... This should be selected answer. – Lokesh Jan 18 '19 at 6:57 1 ...
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Explicit specialization in non-namespace scope [duplicate]

... a lot. I was looking for this also as I need to access this. Wish I could select 2 answers. – Mark Jun 18 '10 at 3:20 7 ...
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How do I restore a missing IIS Express SSL Certificate?

...es). So, if you're using IIS Express in Visual Studio, make sure the port selected is in the required range: vs setting for iis express share | improve this answer | follow ...
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pandas: filter rows of DataFrame with operator chaining

... Since version 0.18.1 the .loc method accepts a callable for selection. Together with lambda functions you can create very flexible chainable filters: import numpy as np import pandas as pd df = pd.DataFrame(np.random.randint(0,100,size=(100, 4)), columns=list('ABCD')) df.loc[lambda ...
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How to find issues that at some point has been assigned to you?

... You can find issues by worklog entries directly in the database: select distinct ji.pkey from jiraissue ji inner join worklog wl on ji.id=wl.issueid where wl.author='some_username'; I agree this should be implemented in the UI though. ...
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Check if UIColor is dark or bright?

I need to determine whether a selected UIColor (picked by the user) is dark or bright, so I can change the color of a line of text that sits on top of that color, for better readability. ...
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Pick a random element from an array

...low Just to answer your question, you can do this to achieve random array selection: let array = ["Frodo", "sam", "wise", "gamgee"] let randomIndex = Int(arc4random_uniform(UInt32(array.count))) print(array[randomIndex]) The castings are ugly, but I believe they're required unless someone else h...