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instance method

Range#to_a

() -> ::Array[E]

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_s #size #to_set also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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