instance method

Set#clear

() -> self

clear → self

static VALUE
set_i_clear(VALUE set)
{
    rb_check_frozen(set);
    if (RSET_SIZE(set) == 0) return set;
    if (set_iterating_p(set)) {
        set_iter(set, set_clear_i, 0);
    }
    else {
        set_table_clear(RSET_TABLE(set));
        set_compact_after_delete(set);
    }
    return set;
}

Removes all elements and returns self.

Example

set = Set[1, 'c', :s]             #=> Set[1, "c", :s]
set.clear                         #=> Set[]
set                               #=> Set[]

See also #classify #collect! #as_json #compare_by_identity also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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