Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →
instance method
Hash#clear
() -> self
clear → self
hash.c
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VALUE
rb_hash_clear(VALUE hash)
{
rb_hash_modify_check(hash);
if (hash_iterating_p(hash)) {
rb_hash_foreach(hash, clear_i, 0);
}
else if (RHASH_AR_TABLE_P(hash)) {
ar_clear(hash);
}
else {
st_clear(RHASH_ST_TABLE(hash));
compact_after_delete(hash);
}
return hash;
}
Removes all entries from self; returns emptied self.
Related: see Methods for Deleting.