ECMAScript Cookbook

How to do it...

1. Open your command-line application and navigate to your workspace.
2. Create a new folder named 3-06-using-promise-all.
3. Copy or create an index.html that loads and runs a main function from main.js.

4. Create a main.js file that creates an object named rocket, and calls Promise.all with an empty array as the first argument:

export function main() { 
  console.log('Before promise created'); 
 
  const rocket = {}; 
  Promise.all([]) 
 
  console.log('After promise created'); 
}  

5. Create a function named addBoosters that creates an object with boosters to an object:

function addBoosters (rocket) { 
  console.log('attaching boosters'); 
  rocket.boosters = [{ 
    count: 2, 
    fuelType: 'solid' 
  }, { 
    count: 1, 
    fuelType: 'liquid' 
  }]; 
  return rocket;  
}   

6. Create ...