"ISO-8859-1" Encoding in javascript

Question

I've created a base64 encoding string in the following format using C#. I want to create the same encoded string using JavaScript.

var isoEncoding = System.Text.Encoding.GetEncoding("ISO-8859-1");
var a = isoEncoding.GetBytes(username + ":" + password);
String encoded = System.Convert.ToBase64String(a);
request.Headers.Add("Authorization", "Basic " + encoded);

Here I used iconv and try to get encoded string and it gives a differen encoded string. what can be the reason?

var str  = this.username+':'+this.password;
var s = iconv.encode(str, 'ISO-8859-1');
var a = btoa(s.toString()); 
headers.append('Authorization', 'Basic ' + a);

Answer 1

Use this instead of btoa:

var a = s.toString('base64');

The default encoding for buffer.toString is utf-8