Search results
Results From The WOW.Com Content Network
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 . Unlike other for loop constructs, however, foreach loops [ 1 ] usually maintain no explicit counter: they essentially say "do this to everything in this ...
The foreach statement is derived from the for statement and makes use of a certain pattern described in C#'s language specification in order to obtain and use an enumerator of elements to iterate over. Each item in the given collection will be returned and reachable in the context of the code block.
The following demonstrates enumeration using a foreach loop: ... See the C# example on this page for additional information. let numbers = System. Collections.
Comparison of programming languages; General comparison; Assignment; Basic syntax; Basic instructions; Comments; Control flow Foreach loops; While loops; For loops
The loop counter is used to decide when the loop should terminate and for the program flow to continue to the next instruction after the loop. A common identifier naming convention is for the loop counter to use the variable names i , j , and k (and so on if needed), where i would be the most outer loop, j the next inner loop, etc.
In the ECMAScript example, return x will leave the inner closure to begin a new iteration of the forEach loop, whereas in the Smalltalk example, ^x will abort the loop and return from the method foo. Common Lisp provides a construct that can express either of the above actions: Lisp (return-from foo x) behaves as Smalltalk ^x , while Lisp ...
set foreach (item => { instructions}) Smalltalk: conditionBlock whileTrue: loopBlock: loopBlock doWhile: conditionBlock: first to: last do: loopBlock: collection do: loopBlock: Common Lisp (loop while condition do instructions) or (do (notcondition) instructions) (loop do instructions while condition) (loop
Foreach loops; While loops; For loops; ... usually #new or #new:, and many others, for example: Point x: 10 y: 20. ... Loop ABAP Objects — C++ C#