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Foreach loop
For each (or foreach) is a computer language idiom for traversing items in a collection. Foreach is usually used in place of a standard for statement. Unlike other for loop constructs, however, foreach loops usually maintain no explicit counter: they essentially say "do this to everything in this set", rather than "do this ''x'' times". This avoids potential off-by-one errors and makes code simpler to read. In object-oriented languages an ()], even if implicit, is often used as the means of traversal.
== Syntax ==
Syntax varies among languages. Most use the simple word for, roughly as follows:
for each item in collection:
do something to item
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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