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instance method

Array#reverse

array.reverse → new_array

static VALUE
rb_ary_reverse_m(VALUE ary)
{
    long len = RARRAY_LEN(ary);
    VALUE dup = rb_ary_new2(len);

    if (len > 0) {
        const VALUE *p1 = RARRAY_CONST_PTR_TRANSIENT(ary);
        VALUE *p2 = (VALUE *)RARRAY_CONST_PTR_TRANSIENT(dup) + len - 1;
        do *p2-- = *p1++; while (--len > 0);
    }
    ARY_SET_LEN(dup, RARRAY_LEN(ary));
    return dup;
}

Returns a new Array with the elements of self in reverse order.

Example

a = ['foo', 'bar', 'two']
a1 = a.reverse
a1 # => ["two", "bar", "foo"]

See also #reverse! #replace #repeated_permutation #reverse_each also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0

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