zemelya

zemelya

var Worker = require('webworker-threads').Worker;

var promises = [];
var start = new Date();

for (let worker = 0; worker < 4; worker++) {
  var promise = new Promise((resolve, reject) => {
    setTimeout(() => {
      var fibo = new Worker(function() {
        function fibonacci(num) {
          if (num <= 1) return 1;

          return fibonacci(num - 1) + fibonacci(num - 2);
        }

        this.onmessage = function (event) {
          var result = fibonacci(event.data)
          postMessage(result);
        };
      });
      fibo.onmessage = function (event) {
        var end = new Date();
        var seconds = (end.getTime() - start.getTime()) / 1000;

        console.log(seconds)
        console.log(new Date());
        resolve();
      };
      fibo.postMessage(45);
    }, 0);
    // setTimeout(() => {
    //   function fibonacci(num) {
    //     if (num <= 1) return 1;
    //
    //     return fibonacci(num - 1) + fibonacci(num - 2);
    //   }
    //
    //   const start = new Date();
    //   console.log('worker: ', worker, start);
    //   fibonacci(45);
    //   const end = new Date();
    //   var seconds = (end.getTime() - start.getTime()) / 1000;
    //   console.log('worker: ', worker, seconds);
    //   resolve();
    // }, 0);
  });
  promises.push(promise);
}


console.log('MAJOR START: ', start);

Promise.all(promises).then(() => {
  var end = new Date();
  var seconds = (end.getTime() - start.getTime()) / 1000;
  console.log('MAJOR END: ', seconds);
  console.log(new Date());
});