1// JS Tip of the Day
2// Prefixed Counter with Generators
3
4function* prefixedCounterGenerator(prefix, counter = 0) {
5  while(true) {
6    yield `${prefix}-${counter++}`;
7  }
8}
9
10const generator = prefixedCounterGenerator('bat', 20);
11
12console.log(generator.next().value); // bat-20
13console.log(generator.next().value); // bat-21
14console.log(generator.next().value); // bat-22