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What are the implications of using “!important” in CSS? [duplicate]

...!important. But sometimes when you have to overwrite styles that have been set inline (e.g. by a JavaScript widget) it's the only way to change the css when you don't want to dive into JS. – acme Nov 8 '11 at 16:13 ...
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Convert a date format in PHP

I am trying to convert a date from yyyy-mm-dd to dd-mm-yyyy (but not in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string. ...
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

...处理类型上也有所不同。以“… Async”结尾的方法使用 AfterXmit 和 XmitFailure 事件确认发送消息。每次传输后都会触发 AfterXmit。如果您只对错误情况感兴趣,请使用 XmitFailure 事件,该事件在发生错误时也会触发。其他两种方法将...
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How to determine the number of days in a month in SQL Server?

...act-SQL) to get the number of days in the month. DECLARE @ADate DATETIME SET @ADate = GETDATE() SELECT DAY(EOMONTH(@ADate)) AS DaysInMonth share | improve this answer | f...
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What's the Best Way to Shuffle an NSMutableArray?

If you have an NSMutableArray , how do you shuffle the elements randomly? 12 Answers ...
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]

...when you hit enter, a fork + exec + wait happens like above, and bash then sets $? to the exit status of the forked process. Note: for built-in commands like echo, a process need not be spawned, and Bash just sets $? to 0 to simulate an external process. Standards and documentation POSIX 7 2.5.2 "Sp...
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Convert a PHP object to an associative array

...; 1, '' . "\0" . '*' . "\0" . 'bar' => 2, 'baz' => stdClass::__set_state(array( )), ) Typecasting this way will not do deep casting of the object graph and you need to apply the null bytes (as explained in the manual quote) to access any non-public attributes. So this works best when...
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How to append text to an existing file in Java?

... You can use fileWriter with a flag set to true , for appending. try { String filename= "MyFile.txt"; FileWriter fw = new FileWriter(filename,true); //the true will append the new data fw.write("add a line\n");//appends the string to the file f...
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Edit line thickness of CSS 'underline' attribute

...with it using a pair of box-shadows: .custom-underline{ box-shadow: inset 0 0px 0 white, inset 0 -1px 0 black } First shadow is put on top of the second one and that's how you can control the second one by varying the 'px' value of both. Plus: various colors, thickness and underline positio...
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Concurrent.futures vs Multiprocessing in Python 3

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