diff options
| -rw-r--r-- | hash.c | 15 |
1 files changed, 8 insertions, 7 deletions
@@ -2579,17 +2579,18 @@ rb_hash_delete_if(VALUE hash) * reject! {|key, value| ... } -> self or nil * reject! -> new_enumerator * - * Returns +self+, whose remaining entries are those - * for which the block returns +false+ or +nil+: + * With a block given, calls the block with each entry's key and value; + * removes the entry from +self+ if the block returns a truthy value. + * + * Return +self+ if any entries were removed, +nil+ otherwise: + * * h = {foo: 0, bar: 1, baz: 2} * h.reject! {|key, value| value < 2 } # => {baz: 2} + * h.reject! {|key, value| value < 2 } # => nil * - * Returns +nil+ if no entries are removed. + * With no block given, returns a new Enumerator. * - * Returns a new Enumerator if no block given: - * h = {foo: 0, bar: 1, baz: 2} - * e = h.reject! # => #<Enumerator: {foo: 0, bar: 1, baz: 2}:reject!> - * e.each {|key, value| key.start_with?('b') } # => {foo: 0} + * Related: see {Methods for Deleting}[rdoc-ref:Hash@Methods+for+Deleting]. */ static VALUE |