Javascript - How to reverse a string and disappear those commas?

Question

I want to reverse the string like this: "How are you" -> "you are How" Those are the code I typed, it could reverse the string , but it still has comma between strings like "you,are,How"

var str = window.prompt("Enter a string"); var tokens = str.split( " " );

document.writeln( tokens.reverse() );

Answer 1

Use .join(" ")

var str = window.prompt("Enter a string"); var tokens = str.split( " " );
document.writeln( tokens.reverse().join(" ") );