method

keep_if

Ruby latest stable (v2_5_5) - 0 notes - Class: Hash

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What's this?

keep_if() public

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

If no block is given, an enumerator is returned instead.

VALUE
rb_hash_keep_if(VALUE hash)
{
    RETURN_SIZED_ENUMERATOR(hash, 0, 0, hash_enum_size);
    rb_hash_modify_check(hash);
    if (RHASH(hash)->ntbl)
        rb_hash_foreach(hash, keep_if_i, hash);
    return hash;
}

keep_if

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