Using Java or JS to implement string reverse

A bit is my study, found and learned some of the methods, the great gods have a lot of guidance:

1, using JS to achieve, this personal method feels more direct

1 //js for reverse output2<script type= "Text/javascript" >3$(function(){4Alert (1)5     6 varstr = ' You are a big bad man ';7 varNewstr = Str.split (""). Reverse (). Join ("");8 alert (NEWSTR);9 })Ten  One</script>

2, using the ToCharArray () of the string class to implement the reverse method

1 ImportJavax.swing.JOptionPane;2 3  Public classTest {4     5 //using the ToCharArray () of the string class to implement the reverse method6      Public Static voidMain (string[] args) {7 String orgstring;8String resultstring = "";9 //pop-up box prompt messageTenOrgstring =joptionpane.showinputdialog ("Please enter content that needs to be reversed!") "); One         Char[] chararray=Orgstring.tochararray (); A          for(inti = chararray.length-1; I >=0; i--) { -resultstring+=Chararray[i]; -         } theJoptionpane.showmessagedialog (NULL, resultstring, "Reverse String", joptionpane.information_message); -     } -      -}

3, using the substring () method provided by the String class plus recursion

1 import Javax.swing.JOptionPane;2 3 Public class Test {4 5     //using the substring () method provided by the string class plus recursion6 7public staticvoidresultstring (String str) {8         if(str.length () = = 1) {9 System.out.print (str);Ten}Else { OneString subString1 = str.substring (0, Str.length ()-1); AString subString2 = str.substring (Str.length ()-1); - System.out.print (subString2); - resultstring (subString1); the         } -     } -  -public staticvoidMain (string[] args) { +  - String originalstring; +originalstring = Joptionpane.showinputdialog ("Please enter content that needs to be reversed:"); A resultstring (originalstring); at  -     } -}

Using Java or JS to implement string reverse