You want to reverse a string either by word or by letter.
Use the split( ) method to create an array of the words/characters and use the reverse( ) and join( ) methods on that array.
You can reverse a string by word or by character using the same process. The only difference is in the delimiter you use in the split( ) method and the joiner you use in the join( ) method. In either case, you should first split the string into an array?using a space as the delimiter for words or the empty string as the delimiter for characters. Then call the reverse( ) method of the array, which reverses the order of the elements. Finally, use the join( ) method to reconstruct the string. When reversing by word, use a space as the joiner, and when reversing by character, use the empty string as the joiner.
myString = "hello dear reader"; // Split the string into an array of words. words = myString.split(" "); // Reverse the array. words.reverse( ); // Join the elements of the array into a string using spaces. myStringRevByWord = words.join(" "); // Outputs: reader dear hello trace(myStringRevByWord); // Split the string into an array of characters. chars = myString.split(""); // Reverse the array elements. chars.reverse( ); // Join the array elements into a string using the empty string. myStringRevByChar = chars.join(""); // Outputs: redaer raed olleh trace(myStringRevByChar);