大约有 47,000 项符合查询结果(耗时:0.0740秒) [XML]

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Keep file in a Git repo, but don't track changes

...t solution to do this. First change the file you do not want to be tracked and use the following command: git update-index --assume-unchanged FILE_NAME and if you want to track the changes again use this command: git update-index --no-assume-unchanged FILE_NAME git-update-index documentation...
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Big-O for Eight Year Olds? [duplicate]

I'm asking more about what this means to my code. I understand the concepts mathematically, I just have a hard time wrapping my head around what they mean conceptually. For example, if one were to perform an O(1) operation on a data structure, I understand that the number of operations it has to p...
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How do I decode a string with escaped unicode?

... to http://example.com with JavaScript? I tried unescape , decodeURI , and decodeURIComponent so I guess the only thing left is string replace. ...
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Sync data between Android App and webserver [closed]

I want to sync data (such as db record, media) between an Android App and a Server. If you've seen Evernote or similar Applications, you certainly understand what I mean. ...
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What's the cleanest way of applying map() to a dictionary in Swift?

...values. It also includes a filter(_:) overload which returns a Dictionary, and init(uniqueKeysWithValues:) and init(_:uniquingKeysWith:) initializers to create a Dictionary from an arbitrary sequence of tuples. That means that, if you want to change both the keys and values, you can say something li...
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How do you fork your own repository on GitHub?

I have a public repository on GitHub. I want to replicate/copy it and work on a new project based on this repository, but I don't want to affect how it is now. I tried forking it using the GitHub UI but it didn't do anything. ...
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What is the smallest possible valid PDF?

...oy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec. However, Acrobat X doesn't even bother with the cross reference table anymore, so we can take that out: %PDF-1.0 1 0 obj<</Type/Catalog/Pages 2 0 R>>endo...
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Create new user in MySQL and give it full access to one database

I want to create a new user in MySQL and give it full access only to one database, say dbTest , that I create with a command like create database dbTest; . What would be the MySQL commands to do that? ...
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Error handling in getJSON calls

How can you handle errors in a getJSON call? Im trying to reference a cross-domain script service using jsonp, how do you register an error method? ...
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What is an unsigned char?

...ich gives you at least the 0 to 255 range. "At least", because the C++ standard only gives the minimum range of values that each numeric type is required to cover. sizeof (char) is required to be 1 (i.e. one byte), but a byte could in theory be for example 32 bits. sizeof would still be report its...