大约有 47,000 项符合查询结果(耗时:0.0315秒) [XML]

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Is it a bad practice to use an if-statement without curly braces? [closed]

... The "rule" I follow is this: If the "if" statement is testing in order to do something (I.E. call functions, configure variables etc.), use braces. if($test) { doSomething(); } This is because I feel you need to make it clear what functions are being called and where the flow of the...
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Is there an S3 policy for limiting access to only see/access one bucket?

... In order to see the list of buckets in the console (and therefore use the console for bucket access) you must grant ListAllMyBuckets and GetBucketLocation for all S3 buckets ("arn:aws:s3:::*" will work rather than "*" for the re...
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In what areas might the use of F# be more appropriate than C#? [closed]

...nto the calculation engine was in the form of vectors and matrices. Higher order functions eat these for breakfast with minimal fuss, minimal code. Beautiful. Lack of bugs Functional programming can feel strange. I can be working on an algorithm, trying hard to get the code to pass the type checker...
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?

...r cache thrashing, if I can coin a term. Caches work by indexing with low order bits and tagging with high order bits. Imaging that your cache has 4 words and your matrix is 4 x 4. When a column is accessed and the row is any power of two in length, then each column element in memory will map to t...
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How can I include raw JSON in an object using Jackson?

...N inside a Java object when the object is (de)serialized using Jackson. In order to test this functionality, I wrote the following test: ...
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doesn't inherit the font from

...adding either. But when I mess with certain properties, like background, border, or this strange appearance property, then font-family and padding have effect, but the native look and feel of the button is lost, which is not a problem if you are completely restyling the buttons. If you want a nati...
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How to calculate the angle between a line and the horizontal axis?

...e will give 45.0 degrees for the example shown, which is wrong. Change the order of the deltaY calculation and it works properly. share | improve this answer | follow ...
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'Operation is not valid due to the current state of the object' error during postback

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?

...s affected (0.01 sec) In short I had to reduce the size of that field in order to get the update to work. Now when I run: mysql> ALTER TABLE user CONVERT TO CHARACTER SET utf8mb4; Query OK, 5 rows affected (0.01 sec) Records: 5 Duplicates: 0 Warnings: 0 It all works ...
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Form onSubmit determine which submit button was pressed [duplicate]

...the browser will // automatically choose the first in source-order // so we do the same here submitActor = $submitActors[0]; } console.log(submitActor.name); // alert(submitActor.name); return false; }); ...