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mongodb, replicates and error: { “$err” : “not master and slaveOk=f...
出现这个错误的原因是在从库上执行命令导致，默认情况下只有主库可以执行命令。
当然可以通过设置使得从库也能执行命令，具体参见：
http://stackoverflow.com/questions/8990158/mongodb-replicates-and-error-err-not-master-and-slaveok-false-code
How to convert a std::string to const char* or char*?
How can I convert an std::string to a char* or a const char* ?
8 Answers
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【可动态编辑表格】App Inventor 2 Dynamic Editable HTML Table - App应用...
olor=rgba(0, 0, 0, 0.54)This example will allow you to:
Display an AI2 (in csv format e.g. header row, then data rows) list in an html table. It will also allow you (with the exception of the header row) to create new rows, edit any row, and delete any row, whilst returning the saved/upd...
How do I save a UIImage to a file?
...pp. You use NSFileManager to do that.
You use UIImagePNGRepresentation to convert your image to NSData and save that to disk.
// Create path.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath = [[paths objectAtIndex:0] stringByAppe...
JSON datetime between Python and JavaScript
...problem is that if you have some other objects in list/dict this code will convert them to None.
– Tomasz Wysocki
Jul 3 '10 at 7:02
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What does apply_filters(…) actually do in WordPress?
...asses the value through the following sequence of functions:
wptexturize
convert_smilies
convert_chars
wpautop
shortcode_unautop
prepend_attachment
do_shortcode
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Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]
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If you use Sublime Text 3 editor, you can convert line endings from Windows to Linux format by selecting View->Line Endings->Unix and then save your script with Ctrl+S
– Alfredo Capobianchi
Aug 17 '17 at 21:53
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moment.js 24h format
...:00 PM", "h:mm:ss A").format("HH:mm:ss")
**o/p: 13:15:00 **
it will give convert 24 hrs format to 12 hrs format.
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JSON Stringify changes time of date because of UTC
...u need to do this (maybe it will help you) , you pass false and it doesn't convert. var something = dateFormat(myStartDate, "isoDateTime", false);
– mark smith
Sep 28 '09 at 14:02
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How do I get a UTC Timestamp in JavaScript?
... zone as such, and time zone conversions are difficult to track if you are converting between two non UTC and non local times. In js, all Date values have an underlying UTC value which is passed around and known regardless of the offest or time zone conversions that you do. My biggest complaint abou...