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hash.c: improve docs for Hash#slice

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* hash.c: [DOC] clarify description for Hash#slice and remove
  a sentence that might suggest that the receiver is modified;
  improve example to also include a case where a hash with
  several elements is returned.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
stomar 2017-11-07 20:17:04 +00:00
parent 8b1c1c55a9
commit 6f33cde636
1 changed files with 4 additions and 5 deletions
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9
hash.c
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@ -1329,12 +1329,11 @@ rb_hash_reject(VALUE hash)
* call-seq:
* hsh.slice(*keys) -> a_hash
*
* Slices a hash to include only the given keys.
* Returns a hash containing the given keys.
* Returns a hash containing only the given keys and their values.
*
* h = { "a" => 100, "b" => 200, "c" => 300 }
* h.slice("a") #=> {"a"=>100}
* h.slice("c", "d") #=> {"c"=>300}
* h = { a: 100, b: 200, c: 300 }
* h.slice(:a) #=> {:a=>100}
* h.slice(:b, :c, :d) #=> {:b=>200, :c=>300}
*/
static VALUE