大约有 20,000 项符合查询结果(耗时:0.0231秒) [XML]

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Using Rails serialize to save hash to database

I'm try to save a hash mapping ids to a number of attempts in my rails app. My migration to the database to accommodate this new column: ...
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How can I insert values into a table, using a subquery with more than one result?

I really would appreciate your help. 6 Answers 6 ...
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How to use continue in jQuery each() loop?

In my application i am using AJAX call. I want to use break and continue in this jQuery loop. 4 Answers ...
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change html text from link with jquery

a simple question here 7 Answers 7 ...
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`if __name__ == '__main__'` equivalent in Ruby

I am new to Ruby. I'm looking to import functions from a module that contains a tool I want to continue using separately. In Python I would simply do this: ...
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Question mark (?) in XML attributes for Android

Can anyone explain the question mark means in Android XML attributes? 2 Answers 2 ...
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Finding # occurrences of a character in a string in Ruby

I'm looking for the Ruby method (1.9...) that can help me find the number of occurrences of a character in a string. I'm looking for all occurrences, not just the first one. ...
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Why does the JavaScript need to start with “;”?

... I would say since scripts are often concatenated and minified/compressed/sent together there's a chance the last guy had something like: return { 'var':'value' } at the end of the last script without a ; on the end. If you...
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Python datetime - setting fixed hour and minute after using strptime to get day,month,year

I've successfully converted something of 26 Sep 2012 format to 26-09-2012 using: 3 Answers ...
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How to create nonexistent subdirectories recursively using Bash?

I am creating a quick backup script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions? ...