--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Modifies <em>str</em> by converting the first character to uppercase and the remainder to lowercase. Returns <tt>nil</tt> if no changes are made.
- !ruby/struct:SM::Flow::VERB 
  body: "   a = &quot;hello&quot;\n   a.capitalize!   #=&gt; &quot;Hello&quot;\n   a               #=&gt; &quot;Hello&quot;\n   a.capitalize!   #=&gt; nil\n"
full_name: String#capitalize!
is_singleton: false
name: capitalize!
params: |
  str.capitalize!   => str or nil

visibility: public