Simple Asynchronous Functions

setTimeout.js

let getDataOne = (cb) => {
        setTimeout(function(){
        //calling the callback
        cb('dummy data one')
    }, 1000);
}
let getDataTwo = (cb) => {
        setTimeout(function(){
        //calling the callback
        cb('dummy data two')
    }, 1000);
}


//Both these functions mimic the async code with setTimeout. 
//Once the desired time has elapsed, setTimeout will call the 
//passed callback cb with value dummy data one and dummy data two, 
//respectively. Let’s see how we will be calling these two functions 
//without generators in the first place:

getDataOne((data) => console.log("data received",data))

getDataTwo((data) => console.log("data received",data))

//That code will print the following after 1,000 ms: 

//Result Running
data received dummy data one
data received dummy data two