method
first
ruby latest stable - Class:
Range
first(p1)public
Returns the first object in the range, or an array of the first n elements.
(10..20).first #=> 10 (10..20).first (3) #=> [10, 11, 12]
static VALUE
range_first(int argc, VALUE *argv, VALUE range)
{
VALUE n, ary[2];
if (argc == 0) return RANGE_BEG(range);
rb_scan_args(argc, argv, "1", &n);
ary[0] = n;
ary[1] = rb_ary_new2(NUM2LONG(n));
rb_block_call(range, idEach, 0, 0, first_i, (VALUE)ary);
return ary[1];
}