大约有 18,616 项符合查询结果(耗时:0.0325秒) [XML]

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Python - abs vs fabs

I noticed that in python there are two similar looking methods for finding the absolute value of a number: 4 Answers ...
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SQL how to increase or decrease one for a int column in one command

I have an Orders table which has a Quantity column. During check in or check out, we need to update that Quantity column by one. Is there a way to do this in one action or we have to get the existing value and then add or minus one on top of it? ...
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How to Get the Title of a HTML Page Displayed in UIWebView?

I need to extract the contents of the title tag from an HTML page displayed in a UIWebView. What is the most robust means of doing so? ...
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Best way to find the intersection of multiple sets?

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delete_all vs destroy_all?

I am looking for the best approach to delete records from a table. For instance, I have a user whose user ID is across many tables. I want to delete this user and every record that has his ID in all tables. ...
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Callback of .animate() gets called twice jquery

Since I added some scrollTop -animation, some parts of my callback get called twice: 2 Answers ...
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What are “decorators” and how are they used?

I'm curious what exactly decorators are in AngularJS. There isn't much information online for decorators save for a blurb in the AngularJS documentation and a brief (albeit interesting) mention in a youtube video . ...
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How to assign an exec result to a sql variable?

How do you assign the result of an exec call to a variable in SQL? I have a stored proc called up_GetBusinessDay , which returns a single date. ...
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What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?

What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? 6 Answers ...
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Custom sort function in ng-repeat

I have a set of tiles that display a certain number depending on which option is selected by the user. I would now like to implement a sort by whatever number is shown. ...