How can you effectively use asynchronous functions?

I'm currently exploring Express and asynchronous/functional programming.

app.get('/users/:id', (req, res) => {
  let id = req.params.id;
  let User = require('../models/user')
  User.is_complete(id, (validate) => {
    console.log(validate)
  })
  User.find(id, (user) => {
    console.log(user)
    res.render('users/index', {user: user, validate: validate})
  })
})

I want to display the view with two variables: the validation result of User.is_complete and the user object from User.find

Can anyone guide me on how to achieve this?

Appreciate your help!

Answer №1

To effectively manage asynchronous code, you will need to nest functions. This means that once User.is_complete finishes executing, it should then call User.find within the callback function.

User.is_complete(id, (validate) => {
  User.find(id, (user) => {
    console.log(user)
    res.render('users/index', {user: user, validate: validate})
 });
});

Another approach to handling asynchronous operations is by utilizing event emitting. It's worth looking into this method as well.

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