instance method Enumerable#each
Enumerable#each(iterator[, context]) → Enumerable
-
iterator
(Function
) – AFunction
that expects an item in the collection as the first argument and a numerical index as the second. -
context
(Object
) – The scope in which to calliterator
. Affects what the keywordthis
means insideiterator
.
Calls iterator
for each item in the collection.
Examples
['one', 'two', 'three'].each(alert);
// Alerts "one", then alerts "two", then alerts "three"
Built-In Variants
Most of the common use cases for each
are already available pre-coded
as other methods on Enumerable
. Whether you want to find the first
matching item in an enumeration, or transform it, or determine whether it
has any (or all) values matching a particular condition, Enumerable
has a method to do that for you.