node.js

问题 I'm new to Next.js and I'm trying to understand the suggested structure and dealing with data between pages or components. For instance inside my home.js page, I fetch a internal API called /api/user.js where it sends back to me some user data from mongodb. The fetch right now happens inside the getServerSideProps() which passes various props to the page after some math. From my understanding this is the way to go for a good SEO, since props get fetched/modified server side and the page gets

问题 I'm new to Next.js and I'm trying to understand the suggested structure and dealing with data between pages or components. For instance inside my home.js page, I fetch a internal API called /api/user.js where it sends back to me some user data from mongodb. The fetch right now happens inside the getServerSideProps() which passes various props to the page after some math. From my understanding this is the way to go for a good SEO, since props get fetched/modified server side and the page gets

问题 I'm running expressJS in one of the containers I'm trying to run in docker-compose; When I keep pressing CMD+R to refresh the landing page (Probably 3~4 seconds), it says "Error: socket hang up" and broken. Here is the error saml-enabled-reverse-proxy_1 | /node_modules/http-proxy/lib/http-proxy/index.js:120 saml-enabled-reverse-proxy_1 | throw err; saml-enabled-reverse-proxy_1 | ^ saml-enabled-reverse-proxy_1 | saml-enabled-reverse-proxy_1 | Error: socket hang up saml-enabled-reverse-proxy_1

问题 I'd like the unique _id field in one of my models to be relatively short: 8 letters/numbers, instead of the usual Mongo _id which is much longer. Having a short unique-index like this helps elsewhere in my code, for reasons I'll skip over here. I've successfully created a schema that does the trick (randomString is a function that generates a string of the given length): new Schema('Activities', { '_id': { type: String, unique: true, 'default': function(){ return randomString(8); } }, // ...

问题 I want to play with ES6 modules, so I decided on using Node as a simple web server to avoid all CORS related errors I first encountered when doing it locally. Now I get MIME type related errors in the browser which I can't quite grasp. Here is my server.js file: const http = require('http'), url = require('url'), fs = require('fs'); http.createServer((req, res) => { const q = url.parse(req.url, true), filename = "." + q.pathname; fs.readFile(filename, (err, data) => { if (err) { res.writeHead

问题 I have a follow system app.get('/user/:id', function(req, res){ User.findById(req.user ).exec(function(err, user){ User.findById(req.params.id, function(err, kullanici){ User.findById(user, {follower:kullanici._id}, function(err, follow){ if(follow== ""+kullanici._id+""){ console.log("sdasdsad") }else{ console.log("no") } ... kullanici = user in profile user = current user follow =the users who follows the kullanici When current user is one of the takip then I will console log sdasdsad but

问题 So I want the code inside loop to run simultaneously but the code after the loop to run only when loop is done processing: Code async function asyncForEach(array, callback) { for (let index = 0; index < array.length; index++) { await callback(array[index], index, array); } } const waitFor = (ms, num) => new Promise(r => setTimeout(() => { console.log(num) r() }, ms)); const doStuff = async() => { await asyncForEach([1, 2, 3], async(num) => { await waitFor(1000, num); }) console.log('Done'); }

问题 Looking for a way to insert activities to the database in bulk using Sequelize Model.bulkCreate . Not sure how to bring the activities from the view to the route function in order to insert them using bulkCreate . Right now I only insert one activity. View: <form action="/create" method="POST"> <div class="form-group"> <label>Plan Name</label> <input type="text" name="plan_name" placeholder="Plan Name"> </div> <div class="form-group"> <label>Description</label> <input type="text" name=

问题 When trying to hit the command : npm install -g @angular/cli@6.1.1 Note: I have Node.Js LTS 10.xx version, .Net Framework 4.7.2 Developer pack, and all necessary extensions in place. Error thrown: npm ERR! code ELOOP npm ERR! syscall stat npm ERR! path \\horofs**\users$\ npm ERR! errno -62 npm ERR! ELOOP: too many symbolic links encountered, stat '\\horofs06\users$\' npm ERR! A complete log of this run can be found in: npm ERR! \\horofs**\users$\W****\AppData\Roaming\npm-cache\_logs\2020-07

问题 When trying to hit the command : npm install -g @angular/cli@6.1.1 Note: I have Node.Js LTS 10.xx version, .Net Framework 4.7.2 Developer pack, and all necessary extensions in place. Error thrown: npm ERR! code ELOOP npm ERR! syscall stat npm ERR! path \\horofs**\users$\ npm ERR! errno -62 npm ERR! ELOOP: too many symbolic links encountered, stat '\\horofs06\users$\' npm ERR! A complete log of this run can be found in: npm ERR! \\horofs**\users$\W****\AppData\Roaming\npm-cache\_logs\2020-07