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Rounding a double to turn it into an int (java)
...ddressing people who would be afraid to use Math.round(), which does "literally" the same as the solution you provide, that is all. Cheers.
– Gauthier Boaglio
Feb 11 '16 at 16:37
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Java RegEx meta character (.) and ordinary dot?
... match 1.50$, -2.00$ etc. and [(){}[\]] for a character class that matches all kinds of brackets/braces/parentheses.
If you need to transform a user input string into a regex-safe form, use java.util.regex.Pattern.quote.
Further reading: Jan Goyvaert's blog RegexGuru on escaping metacharacters
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How to check if an element is in an array
...ins function has been made into a pair of extension method on Array, which allow you to do either of:
let a = [ 1, 2, 3, 4 ]
a.contains(2) // => true, only usable if Element : Equatable
a.contains { $0 < 1 } // => false
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How can I find the last element in a List?
...elp. Enumerable.Last will throw an exception if the list is empty. If you call Enumerable.LastOrDefault and pass a list of value types the default value will be returned if the list is empty. So if you get 0 back from a List<int> you won't know if the list was empty or the last value was 0. I...
How to read a .xlsx file using the pandas Library in iPython?
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I usually create a dictionary containing a DataFrame for every sheet:
xl_file = pd.ExcelFile(file_name)
dfs = {sheet_name: xl_file.parse(sheet_name)
for sheet_name in xl_file.sheet_names}
Update: In pandas version...
How do I make CMake output into a 'bin' dir?
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How to make it apply to all configurations at once?
– emlai
May 23 '15 at 21:24
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Ant: How to execute a command for each file in directory?
...">
<echo message="${theFile}"/>
</target>
This will antcall the target "bar" with the ${theFile} resulting in the current file.
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TypeError: ObjectId('') is not JSON serializable
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Pymongo provides json_util - you can use that one instead to handle BSON types
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Named routes _path vs _url
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_path helpers provide a site-root-relative path. You should probably use this most of the time.
_url helpers provide an absolute path, including protocol and server name. I've found that I mainly use these in emails when cre...
Postgres: SQL to list table foreign keys
Is there a way using SQL to list all foreign keys for a given table? I know the table name / schema and I can plug that in.
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