generator combo

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Fri Sep 08 2023 08:35:24 GMT+0000 (Coordinated Universal Time)

function* generateSequence(start, end) {
  for (let i = start; i <= end; i++) yield i;
}

function* generateAlphaNum() {

  // 0..9
  yield* generateSequence(48, 57);

  // A..Z
  yield* generateSequence(65, 90);

  // a..z
  yield* generateSequence(97, 122);

}

let str = '';

for(let code of generateAlphaNum()) {
  str += String.fromCharCode(code);
}

alert(str); // 0..9A..Za..z

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