Function readJSON

code/ch14/generators/readJSON.js:4–16

(filename, enc='utf8')

function* readJSON(filename, enc='utf8'){
  const caller = yield
  fs.readFile(filename, enc, function (err, res){
      if (err) caller.failure(err)
      else {
        try {
          caller.success(JSON.parse(res))
        } catch (ex) {
          caller.failure(ex)
        }
      }
    }) 
}

const gen = readJSON('./package.json')