Method: Enumerable#each_with_object

Defined in:
enum.c

#each_with_object(obj) {|(*args), memo_obj| ... } ⇒ Object #each_with_object(obj) ⇒ Object

Iterates the given block for each element with an arbitrary object given, and returns the initially given object.

If no block is given, returns an enumerator.

evens = (1..10).each_with_object([]) { |i, a| a << i*2 }
#=> [2, 4, 6, 8, 10, 12, 14, 16, 18, 20]

Overloads:

  • #each_with_object(obj) {|(*args), memo_obj| ... } ⇒ Object

    Yields:

    • ((*args), memo_obj)

    Returns:



1975
1976
1977
1978
1979
1980
1981
1982
1983
 
# File 'enum.c', line 1975

static VALUE
enum_each_with_object(VALUE obj, VALUE memo)
{
    RETURN_SIZED_ENUMERATOR(obj, 1, &memo, enum_size);

    rb_block_call(obj, id_each, 0, 0, each_with_object_i, memo);

    return memo;
}