"simple return" actually returns. It will return control from the each and everything else around it and after it until it exit's each()'s parent control - such as a function() which is using each. This is the correct answer, and the other approach will not work. –

2009年10月2日 · Is there any Linq style syntax for "For each" operations? For instance, add values based on one collection to another, already existing one: IEnumerable<int> someValues = new List<int&gt...

How to implement foreach in Groovy? I have an example of code in Java, but I don't know how to implement this code in Groovy... Java: for (Object objKey : tmpHM.keySet()) { HashMap objHM = (Ha...

2014年2月20日 · Try this more succinct code: Sub LoopOverEachColumn() Dim WS As Worksheet For Each WS In ThisWorkbook.Worksheets ResizeColumns WS Next WS End Sub Private Sub ResizeColumns(WS As Worksheet) Dim StrSize As String Dim ColIter As Long StrSize = "20.14;9.71;35.86;30.57;23.57;21.43;18.43;23.86;27.43;36.71;30.29;31.14;31;41.14;33.86" …

Using for-each: void cancelAll(Collection<TimerTask> list) { for (TimerTask t : list) t.cancel(); } for-each is a construct over a collection that implements Iterator. Remember that, your collection should implement Iterator; otherwise you can't use it with for-each. The following line is read as "for each TimerTask t in list."

2010年9月27日 · You can add additional expressions to ORDER BY to pick a particular row from each group of peers. Or, as the manual puts it: The DISTINCT ON expression(s) must match the leftmost ORDER BY expression(s). The ORDER BY clause will normally contain additional expression(s) that determine the desired precedence of rows within each DISTINCT ON group.

2013年8月18日 · # i.e. a function that does something on each element, but returns nothing. iterable = map(do_and_return_fn(og_fn), iterable) All of the answers that say "for" loops are the same as "foreach" functions are neglecting the point that other similar functions that operate on iters in python such as map, filter, and others in itertools are lazily ...

I've created a program that generates buy and sell signals of stocks. I've also created logic that tests the different signals and provides the return for each trade. The next step is to simulate the strategy and its rules over a long period of time. All information is exported to text files and imported to a table in a SQL Server database.

For each Hash<String, HashMap> I need to create a ComboBox, whose items are the value (which happens to be a HashMap itself) of HashMap <String, **HashMap**>. By way of (non-functioning) demonstration:

If you only need the first row from each group we can do with drop_duplicates, Notice the function default method keep='first'. df.drop_duplicates('id') Out[1027]: id value 0 1 first 3 2 first 5 3 first 9 4 second 11 5 first 12 6 first 15 7 fourth