JavaScript uses yield to simulate multithreading

This article describes the method of using yield to simulate multithreading in JavaScript. Share it for your reference. The specific analysis is as follows:

There are yield methods in python and C#. Through yield, many functions that can only be implemented by multiple threads.
There are version requirements for javascript: JavaScript 1.7

function Thread( name ) {
  for ( var i = 0; i < 5; i++ ) {
    Print(name+': '+i);
    yield;
  }
}
//// thread management
var threads = [];
// thread creation
( new Thread('foo') );
( new Thread('bar') );
// scheduler
while () {
  var thread = ();
  try {
    ();
    (thread);
  } catch(ex if ex instanceof StopIteration) {}
}

The above code input result is as follows:

foo: 0
bar: 0
foo: 1
bar: 1
foo: 2
bar: 2
foo: 3
bar: 3
foo: 4
bar: 4

I hope this article will be helpful to everyone's JavaScript programming.