大约有 11,400 项符合查询结果(耗时:0.0201秒) [XML]

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mysqldump - Export structure only without autoincrement

I have a MySQL database and I am trying to find a way to export its structure only, without the auto increment values. mysqldump --no-data would almost do the job, but it keeps the auto_increment values. Is there any way to do it without using PHPMyAdmin (that I know it can do it)? ...
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Javascript Drag and drop for touch devices [closed]

... You can use the Jquery UI for drag and drop with an additional library that translates mouse events into touch which is what you need, the library I recommend is https://github.com/furf/jquery-ui-touch-punch, with this your drag and drop from Jquery UI should work on touch devises or you...
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Python speed testing - Time Difference - milliseconds

... datetime.timedelta is just the difference between two datetimes ... so it's like a period of time, in days / seconds / microseconds >>> import datetime >>> a = datetime.datetime.now() >>> b = datetime.datetime.now() >>> c = b - a ...
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Efficient way to insert a number into a sorted array of numbers?

... out inserting 1000 random elements into an array of 100,000 pre-sorted numbers using the two methods using Chrome on Windows 7: First Method: ~54 milliseconds Second Method: ~57 seconds So, at least on this setup, the native method doesn't make up for it. This is true even for small data sets, ...
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Shorthand way for assigning a single field in a record, while copying the rest of the fields?

...ting record fields. In GHCi you can do -- > data Foo = Foo { a :: Int, b :: Int, c :: String } -- define a Foo > let foo = Foo { a = 1, b = 2, c = "Hello" } -- create a Foo > let updateFoo x = x { c = "Goodbye" } -- function to update Foos > updateFoo foo ...
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Why is there “data” and “newtype” in Haskell? [duplicate]

It seems that a newtype definition is just a data definition that obeys some restrictions (e.g., only one constructor), and that due to these restrictions the runtime system can handle newtype s more efficiently. And the handling of pattern matching for undefined values is slightly different. ...
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How to convert float to int with Java

I used the following line to convert float to int, but it's not as accurate as I'd like: 7 Answers ...
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How can I convert JSON to CSV?

... First, your JSON has nested objects, so it normally cannot be directly converted to CSV. You need to change that to something like this: { "pk": 22, "model": "auth.permission", "codename": "add_logentry", "content_type": 8, "name": "...
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Is there a “null coalescing” operator in JavaScript?

...d, and otherwise returns its left-hand-side operand. Please check compatibility before using it. The JavaScript equivalent of the C# null coalescing operator (??) is using a logical OR (||): var whatIWant = someString || "Cookies!"; There are cases (clarified below) that the behaviour won't ...
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var functionName = function() {} vs function functionName() {}

...ve recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent. ...