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The default ordering is in ascending order, to reverse the order, the OrderByDescending operator is to be used. ThenBy and ThenByDescending specifies subsequent ordering of the elements. The function to extract the key value from the object is specified by the user as a delegate. Reverse The Reverse operator reverses a collection. GroupBy
In computer programming, foreach loop (or for-each loop) is a control flow statement for traversing items in a collection. foreach is usually used in place of a standard for loop statement.
Comparison of programming languages; General comparison; Assignment; Basic syntax; Basic instructions; Comments; Control flow Foreach loops; While loops; For loops
Comparison of programming languages; General comparison; Assignment; Basic syntax; Basic instructions; Comments; Control flow Foreach loops; While loops; For loops
Item2; /* Amount */ foreach (var amount in query) yield return amount;}} // given an instance of BankAccount called ba and a using System.Linq on top of the current file, // one could now write ba.Sum() to get the account balance, ba.Reverse() to see most recent transactions first, // ba.Average() to get the average amount per transaction ...
In computer programming, an iterator is an object that progressively provides access to each item of a collection, in order. [1] [2] [3]A collection may provide multiple iterators via its interface that provide items in different orders, such as forwards and backwards.
foreach; Ada [1] while condition loop statements end loop: loop statements exit when not condition end loop: for index in «reverse» [first.. last | discrete_type] loop statements end loop: for item of «reverse» iterator loop statements end loop or (for [all | some] [in | of] [first.. last | discrete_type | iterator] => predicate) ALGOL 68
To convert, the program reads each symbol in order and does something based on that symbol. The result for the above examples would be (in reverse Polish notation) "3 4 +" and "3 4 2 1 − × +", respectively. The shunting yard algorithm will correctly parse all valid infix expressions, but does not reject all invalid expressions.