大约有 41,731 项符合查询结果(耗时:0.0489秒) [XML]

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Determine whether JSON is a JSONObject or JSONArray

I am going to receive either a JSON Object or Array from server, but I have no idea which it will be. I need to work with the JSON, but to do so, I need to know if it is an Object or an Array. ...
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How do I create a nice-looking DMG for Mac OS X using command-line tools?

I need to create a nice installer for a Mac application. I want it to be a disk image (DMG), with a predefined size, layout and background image. ...
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Extract a dplyr tbl column as a vector

Is there a more succinct way to get one column of a dplyr tbl as a vector, from a tbl with database back-end (i.e. the data frame/table can't be subset directly)? ...
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What is an EJB, and what does it do?

Been trying to learn what EJB beans are, what does it mean their instances are managed in a pool, blah blah. Really can't get a good grip of them. ...
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How to convert list of key-value tuples into dictionary?

I have a list that looks like: 7 Answers 7 ...
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What do we mean by Byte array? [closed]

Could someone please explain, I do not exactly get the concept. 3 Answers 3 ...
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Using DNS to redirect to another URL with a path [closed]

I'm trying to redirect a domain to another via DNS. 15 Answers 15 ...
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What are the best Haskell libraries to operationalize a program? [closed]

If I'm going to put a program into production, there are several things I need that program to do in order to consider it "operationalized" – that is, running and maintainable in a measurable and verifiable way by both engineers and operations staff. For my purposes, an operationalized program mus...
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Why can't I use the 'await' operator within the body of a lock statement?

The await keyword in C# (.NET Async CTP) is not allowed from within a lock statement. 8 Answers ...
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Should you ever use protected member variables?

Should you ever use protected member variables? What are the the advantages and what issues can this cause? 10 Answers ...