大约有 15,600 项符合查询结果（耗时：0.0223秒） [XML]
Finding the average of a list
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And it produces a nicer error if you accidentally pass in an empty list statistics.StatisticsError: mean requires at least one data point instead of a more cryptic ZeroDivisionError: division by zero for the sum(x) / len(x) solution.
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Hidden Features of MySQL
...note that when you’re trying to insert data into a table and you get the error:
Unknown column ‘the first bit of data what you want to put into the table‘ in ‘field list’
using something like
INSERT INTO table (this, that) VALUES ($this, $that)
it’s because you’ve not got any apo...
convert a list of objects from one type to another using lambda expression
... lamba syntax without having to scroll too far. ;)
– erroric
Apr 23 '15 at 14:52
add a commen...
Determine whether JSON is a JSONObject or JSONArray
... In the end though, I put the string into a JSONObject and if it threw an error, then I knew it was a JSONArray. try { return new JSONObject(json); } catch (Exception e) { } try { return new JSONArray(json); } catch (Exception e) { }
– Greg
Jun 23 '11 at...
chart.js load totally new data
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When I do chart.config.data = newData, I have this error: TypeError: undefined is not an object (evaluating 'i.data.datasets.length') Someone have the same issue?
– Benjamin Lucidarme
Apr 26 '17 at 9:34
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Get current time as formatted string in Go?
...s long as it works I suppose it doesn't matter as long as we don't make an error when coding it. I guess they didn't see fit to provide a constant for that format, and match the string pattern.
– brianoh
May 5 '11 at 3:20
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How to initialise a string from NSData in Swift
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Would you happen to know the Swift 3.0 way? error: use of unresolved identifier 'NSUTF8StringEncoding'
– Glenn 'devalias'
Jun 22 '16 at 1:14
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Converting user input string to regular expression
...some users will add //'s while other will not. And some will make a syntax error. Then, after you stripped the //'s, you may end up with a syntactically valid regex that is nothing like what the user intended, leading to strange behaviour (from the user's perspective).
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How do I iterate over a JSON structure? [duplicate]
...but the original question does say "jquery or javascript." Seems like the error was in not having a jquery tag on the question.
– vlasits
Jan 13 '14 at 18:39
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Using G++ to compile multiple .cpp and .h files
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Redefinition error arises when I use this approach? Is there another way of doing same?
– Waseem Ahmad Naeem
Dec 2 '17 at 15:04
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