method

delete_if

Ruby latest stable (v1_8_7_72) - 0 notes - Class: Hash

1_8_6_287 (0)
1_8_7_72 (-38)
What's this?

delete_if() public

Deletes every key-value pair from hsh for which block evaluates to true.

   h = { "a" => 100, "b" => 200, "c" => 300 }
   h.delete_if {|key, value| key >= "b" }   #=> {"a"=>100}

Show source

/*
 *  call-seq:
 *     hsh.delete_if {| key, value | block }  -> hsh
 *
 *  Deletes every key-value pair from <i>hsh</i> for which <i>block</i>
 *  evaluates to <code>true</code>.
 *
 *     h = { "a" => 100, "b" => 200, "c" => 300 }
 *     h.delete_if {|key, value| key >= "b" }   #=> {"a"=>100}
 *
 */

VALUE
rb_hash_delete_if(hash)
    VALUE hash;
{
    RETURN_ENUMERATOR(hash, 0, 0);
    rb_hash_modify(hash);
    rb_hash_foreach(hash, delete_if_i, hash);
    return hash;
}

delete_if

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