How To Get The Return Value Of A Javascript Promise?

I am struggling to understand how to get the value of a promise within Javascript to be able to check whether it is true or false. let valid = validateForm(); if ( valid === true

Solution 1:

You get it either with .then or await.

let valid = validateForm();

valid.then(function(valid) {
 if (valid) {

 }
})

async function submit () {
  const valid = await validateForm();

  if (valid) {

  }
}
``

Solution 2:

With the then or await:

function promiseExample  (){
    return new Promise((resolve, reject)=> resolve("hello world"))
}

(async ()  => {

    //with then
    promiseExample()
       .then(data => console.log('with then: ', data))
       
    //with await
    var data = await promiseExample()
    console.log('with await: ', data);
})()

Solution 3:

It's hard to believe a simple google search didn't give you an answer for this but here goes:

validateForm().then(value => console.log(value))

or, within an async function:

let value = await validateForm();