Promise timeout example

gistfile1.js

// 這個範例可以讓 N 個 timeout 循序地執行

var count = 0;
var n = 100;

function timeoutPromise()
{
  return new Promise(function(resolve) {
    setTimeout(
      function() {
        console.log(++count);
        resolve('kukuku');
      },
      1000
    );
  });
}

var p = timeoutPromise();

for (var i = 1; i < n; ++i) {
  p = p.then(function() {
    return timeoutPromise();
  });
}