Demonstration of ES2016 await keyword

gistfile1.txt

var val = await new Promise((res, rej) => {
  res('something')
});

// val === 'something'

// this is equivalent to
var val;
new Promise((res, rej) => {
  res('something');
}).then((value) => {
  val = value;
  
  // val === 'something'
});