End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

String#hash

hash → integer

static VALUE
rb_str_hash_m(VALUE str)
{
    st_index_t hval = rb_str_hash(str);
    return ST2FIX(hval);
}

Returns the integer hash value for self. The value is based on the length, content and encoding of self.

See also #gsub! #hex #gsub #include? also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0