base64 encode/decode in Node.js

base64.js

var url = "http://cdn1.giltcdn.com/images/share/uploads/0000/0001/7250/172502872/420x560.jpg";
var encoded = new Buffer(url).toString('base64');
var decoded = new Buffer(encoded, 'base64').toString('ascii')

console.log(encoded);
console.log(decoded);

I'm getting this error
var decoded = new Buffer(encoded, 'base64').toString('ascii')
^

ReferenceError: encoded is not defined
at Object. (C:\Users\madan\Desktop\myfinal\index.js:3:26)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.runMain (module.js:605:10)
at run (bootstrap_node.js:423:7)
at startup (bootstrap_node.js:147:9)
at bootstrap_node.js:538:3

@madanmishra i think you forgot to copy to line 2.
The line 3 is using the variable encoded from the line 2. Then the line 3 can't work without the line 2.

Hope it helps.

The usage of new Buffer() is deprecated. You could use instead new Buffer.from(url).toString('base64')

I know its probably a typo, but I want to clarify that it should be Buffer.from(url).toString('base64') without the new keyword.