Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

Integer#to_s

(?::int base) -> ::String

to_s(base = 10) → string

VALUE
rb_int_to_s(int argc, VALUE *argv, VALUE x)
{
    int base;

    if (rb_check_arity(argc, 0, 1))
        base = NUM2INT(argv[0]);
    else
        base = 10;
    return rb_int2str(x, base);
}

Returns a string containing the place-value representation of self in radix base (in 2..36).

Example

12345.to_s               # => "12345"
12345.to_s(2)            # => "11000000111001"
12345.to_s(8)            # => "30071"
12345.to_s(10)           # => "12345"
12345.to_s(16)           # => "3039"
12345.to_s(36)           # => "9ix"
78546939656932.to_s(36)  # => "rubyrules"

Raises an exception if base is out of range.

See also #to_r #truncate #to_int #upto also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

‹ prev#to_r next ›#truncate