JAVASCRIPT

Async return values

// wait ms milliseconds
function wait(ms) {
  return new Promise(r => setTimeout(r, ms));
}

async function hello() {
  await wait(500);
  return 'world';
}

javascript return value from async function

var result = async_function(input).then(res=>console.log(res))

javascript return data async

// This is your API Call (Can be jQuery, AXIOS, fetch...)
function postAJAX(id){
  return jQuery.getJSON( "/jsonURL" + id, function( data ){});
}

// This is your asyncronous returned data 
function getTheContent(id){
  (async () => {
    console.log(await postAJAX(id));
  })()
}

return data from async function using async await

async function getData() {
  return await axios.get('https://jsonplaceholder.typicode.com/posts');
}

(async () => {
  console.log(await getData())
})()