yield generator javascript code example

Example 1: javascript yield

function* foo(index) {
  while (index < 2) {
    yield index;
    index++;
  }
}

const iterator = foo(0);

console.log(iterator.next().value);
// expected output: 0

console.log(iterator.next().value);
// expected output: 1

Example 2: function generator js

function* name([param[, param[, ... param]]]) {
   statements
}