Reversing a string in JavaScript

Question

I\'m trying to reverse an input string

var oneway = document.getElementById(\'input_field\').value();
var backway = oneway.reverse();

but f

Answer 1

Use this simple method to reverse the words of a string at its position

 function fun(str){
     var arr1=str.split(' ');
     console.log(arr1);
     var strings='',rever='';
     for(var i=0;i<arr1.length;i++)
     {
        strings=arr1[i].split('');
        rever+=strings.reverse().join('')+' ';  
     }
     console.log(rever.split(' '));
     console.log(rever.trim());
 };
 fun('javascript is fun');

Answer 2

Reverse String using function parameter with error handling :

function reverseString(s) 
{
   try
   {
      console.log(s.split("").reverse().join(""));
   }
   catch(e)
   {
      console.log(e.message);
      console.log(s);
   }   
}

Answer 3

The following technique (or similar) is commonly used to reverse a string in JavaScript:

// Don’t use this!
var naiveReverse = function(string) {
    return string.split('').reverse().join('');
}

In fact, all the answers posted so far are a variation of this pattern. However, there are some problems with this solution. For example:

naiveReverse('foo                                                                     

                                                        
            

Answer 4

String.prototype.reverse = function () {
    return this.split("").reverse().join("");
}

Inspired by the first result I got when I did a Google for javascript string reverse.

Answer 5

Mathias Bynens, your code works grate, thanks a lot!

I convert your code to a function, in this way users are able to copy it from here.

Thanks!

//The function reverse a string,  JavaScript’s has internal character encoding so we are
//unable to reverse the string in the "easy ways". For example the TL;DR:                                                                     

                                                        
            

Answer 6

// You could reverse a string without creating an array

String.prototype.reverse= function(){
 var s= '', L= this.length;
 while(L){
  s+= this[--L];
 }
 return s;
}

var s1= 'the time has come, the walrus said, to speak of many things';
s1.reverse()
/*returned value: (String)
sgniht ynam fo kaeps ot, dias surlaw eht, emoc sah emit eht
*/