| /* Callback :( */ | |
| const doThing = () => | |
| fs.readFile('codes.json', 'utf-8', (err, data) => { | |
| if(err) throw err | |
| const newdata = data.replace(/1/g, '2') | |
| fs.writeFile('file2.json', newdata, (err, _) => { | |
| if(err) throw err | |
| console.log('success!') | |
| } | |
| } | |
| /* Using future :D */ | |
| const readFile = futurize(fs.readFile) | |
| const writeFile = futurize(fs.writefile) | |
| const doThing = () => | |
| readFile('codes.json') | |
| .map(data => data.replace('/1/g', '2') | |
| .chain(replaced => | |
| writeFile('codes2.json', replaced)) | |
| doThing().fork(e => console.log(e), | |
| r => console.log('success')) |