index.js
function json(file) {
  var filename = path.basename(file.path, path.extname(file.path)) + ".json";
  return optional(path.join(path.dirname(file.path), filename)) || {};
}
function json(file) {
  var filename = path.basename(file.path, path.extname(file.path)) + ".json";
  return optional(path.join(path.dirname(file.path), filename)) || {};
}
function json ( file ) { var filename = path . basename ( file . path , path . extname ( file . path ) ) + ".json" ; return optional ( path . join ( path . dirname ( file . path ) , filename ) ) || { } ; }
Load JSON data from a companion file and store in file data.

@param {Object} file Vinyl File object
@return JSON data
Load JSON data from a companion file and store in file data .