Андрей Шубников

const array = [
  [
    { name: 'A', age: 10 },
    { name: 'B', age: 10 },
    { name: 'A', age: 10 },
    { name: 'B', age: 10 },
  ],
  [
    { name: 'C', age: 10 },
    { name: 'D', age: 10 },
    { name: 'C', age: 10 },
    { name: 'D', age: 10 },
  ],
];

const groupBy = (collection, extractKey) => {
  const cache = new Map();
  
  return collection.reduce((accumulator, entry) => {
    const key = extractKey(entry);
    if (!cache.has(key)) {
      const group = [];

      cache.set(key, group);
      accumulator.push(group);
    }
    cache.get(key).push(entry);

    return accumulator;
  }, []);
};

const newArray = array.map(entry => groupBy(entry, item => item.name));

console.log(newArray);
/*
[
  [
    [ { name: 'A', age: 10 }, { name: 'A', age: 10 } ],
    [ { name: 'B', age: 10 }, { name: 'B', age: 10 } ]
  ],
  [
    [ { name: 'C', age: 10 }, { name: 'C', age: 10 } ],
    [ { name: 'D', age: 10 }, { name: 'D', age: 10 } ]
  ]
]
*/

const groupBy = (collection, extractKey) => {
  const cache = new Map();
  
  for (const entry of collection) {
    const key = extractKey(entry);
    if (!cache.has(key)) {
      cache.set(key, []);
    }
    cache.get(key).push(entry);
  }
  
  return [...cache.values()];
};

l = []
for i in range(4668, 10414+1):
    if (i % 3 == 0 or i % 11 == 0) and (i % 2 != 0 and i % 13 != 0 and i % 22 != 0 and i % 33 != 0):
        l.append(i)

print(len(l), min(l))

<input id="example-2" type="text"><label for="example-2">Пример 2</label>

<div class="one">
      <p class="text"></p>
</div>
<div class="two">
      <p class="text"></p>
</div>
<script type="text/javascript">
      let contain = document.querySelector('.one > .text');
      contain.innerHTML = 'Текст 1';
      let next = contain.parentElement.nextElementSibling.firstElementChild;
      next.innerHTML = 'Текст 2';
</script>