instance method

Hash#default_proc

() -> (::Proc | nil)

default_proc → proc or nil

static VALUE
rb_hash_default_proc(VALUE hash)
{
    if (FL_TEST(hash, RHASH_PROC_DEFAULT)) {
        return RHASH_IFNONE(hash);
    }
    return Qnil;
}

Returns the default proc for self (see Hash Default):

Example

h = {}
h.default_proc # => nil
h.default_proc = proc {|hash, key| "Default value for #{key}" }
h.default_proc.class # => Proc

See also #default_proc= #default= #default #delete also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

‹ prev#default= next ›#default_proc=