code: function getCode(code, opts, attrs, url) {
    var type = getType(attrs),
      parserOpts = getParserOptions(attrs)
  
    //#if NODE
    // istanbul ignore else
    if (url) {
      var src = getAttr(attrs, 'src')
      if (src) {
        var
          charset = getAttr(attrs, 'charset'),
          file = path.resolve(path.dirname(url), src)
        code = require('fs').readFileSync(file, charset || 'utf8')
      }
    }
    //#endif
    return _compileJS(code, opts, type, parserOpts, url)
  }
docs: Runs the custom or default parser on the received JavaScript code. The CLI version can read code from the file system (experimental)