Delay chained promise

Question

I\'m trying to do the following but it isn\'t working. How can I adjust the code to have a delay between .then and .done?

myServi         


        

Answer 1

You can create a .delay() function set at Promise.prototype which returns a new Promise having value of original promise.

Promise.prototype.delay = function(t) {
  return this.then(function(data) {
    return new Promise(function(resolve) {
      setTimeout(resolve, t || 0, data);
    })
  })
};

Promise.resolve(123)
.delay(6000)
.then(function(data) {
  console.log(data)
});