using multiparty with node js express
var express = require('express');
var multiparty = require('connect-multiparty'),
multipartyMiddleware = multiparty({ uploadDir: './imagesPath' });
var router = express.Router();
router.post('/', multipartyMiddleware, function(req, res) {
console.log(req.body, req.files);
var file = req.files.file;
console.log(file.name);
console.log(file.type);
res.status(200).send('OK');
});
module.exports = router;node js callback
function processData (callback) {
fetchData(function (err, data) {
if (err) {
console.log("An error has occurred. Abort everything!");
return callback(err);
}
data += 1;
callback(null, data);
});
}
processData(function (err, data) {
if (err) {
console.err(err);
} else {
console.log("Data: " + data);
}
});writefile in node js
// append_file.js
const fs = require('fs');
// add a line to a lyric file, using appendFile
fs.appendFile('empirestate.txt', '\nRight there up on Broadway', (err) => {
if (err) throw err;
console.log('The lyrics were updated!');
});writefile in node js
fs.writeFile('2pac.txt', 'Some other lyric', 'ascii', callback);callback in js
function greeting(name) {
alert('Hello ' + name);
}
function processUserInput(callback , {
var name = prompt('Please enter your name.');
callback(name);
}}
processUserInput(greeting);Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
