Range#to_a

to_a → array

static VALUE
range_to_a(VALUE range)
{
    if (NIL_P(RANGE_END(range))) {
        rb_raise(rb_eRangeError, "cannot convert endless range to an array");
    }
    return rb_call_super(0, 0);
}

Returns an array containing the elements in self, if a finite collection; raises an exception otherwise.

Example

(1..4).to_a     # => [1, 2, 3, 4]
(1...4).to_a    # => [1, 2, 3]
('a'..'d').to_a # => ["a", "b", "c", "d"]

See also #step #to_json #size #to_s also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0

‹ prev#step next ›#to_json