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[DOC] Tweaks for Hash#each_key

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BurdetteLamar 2025-02-18 08:51:37 -06:00 committed by Peter Zhu
parent e9ba334fd1
commit eafcdc1535
Notes: git 2025-02-18 15:05:15 +00:00 
Merged: https://github.com/ruby/ruby/pull/12773
1 changed files with 6 additions and 10 deletions
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16
hash.c
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@ -3078,23 +3078,19 @@ each_key_i(VALUE key, VALUE value, VALUE _)
* each_key {|key| ... } -> self
* each_key -> new_enumerator
*
* Calls the given block with each key; returns +self+:
* With a block given, calls the block with each key; returns +self+:
*
* h = {foo: 0, bar: 1, baz: 2}
* h.each_key {|key| puts key } # => {foo: 0, bar: 1, baz: 2}
*
* Output:
* foo
* bar
* baz
*
* Returns a new Enumerator if no block given:
* h = {foo: 0, bar: 1, baz: 2}
* e = h.each_key # => #<Enumerator: {foo: 0, bar: 1, baz: 2}:each_key>
* h1 = e.each {|key| puts key }
* h1 # => {foo: 0, bar: 1, baz: 2}
* Output:
* foo
* bar
* baz
* With no block given, returns a new Enumerator.
*
* Related: see {Methods for Iterating}[rdoc-ref:Hash@Methods+for+Iterating].
*/
static VALUE
rb_hash_each_key(VALUE hash)