change first and last char in string

by Pritesh Patel

JavaScript

function newStr(str){
	if(str.length<=1){
  	return str+"</br>";
  }
  var midStr= str.substring(1,str.length-1);
  return((str.charAt(str.length-1))+midStr+str.charAt(0)+"</br>");
}

document.write(newStr("a"));
document.write(newStr("ab"));
document.write(newStr("abc"));
document.write(newStr("abcde"));