Instructions for the buffer.Buffer.isEncoding method in node.js

method description:

Checks for a valid encoding parameter and returns true or false.

syntax:

Buffer.isEncoding(encoding)

receive parameters:

encoding {String}     is detected in the encoding format

example:

var a = Buffer.isEncoding('base64'); 

 

console.log(a);

source:

Buffer.isEncoding = function(encoding) {

  switch ((encoding + '').toLowerCase()) {

    case 'hex':

    case 'utf8':

    case 'utf-8':

    case 'ascii':

    case 'binary':

    case 'base64':

    case 'ucs2':

    case 'ucs-2':

    case 'utf16le':

    case 'utf-16le':

    case 'raw':

      return true;

    default:

      return false;

  }

};