将点符号字符串转换为多维数组

function convertDotStringToArray(dotString) {
  const keys = dotString.split('.');
  const result = [];

  let current = result;
  for (let i = 0; i < keys.length; i++) {
    const key = keys[i];
    const isArrayIndex = /^\d+$/.test(key);
    const isLastKey = i === keys.length - 1;

    if (isArrayIndex) {
      const index = parseInt(key);
      if (isLastKey) {
        current[index] = null; // 可以根据实际需求进行赋值
      } else {
        current[index] = current[index] || [];
        current = current[index];
      }
    } else {
      if (isLastKey) {
        current[key] = null; // 可以根据实际需求进行赋值
      } else {
        current[key] = current[key] || {};
        current = current[key];
      }
    }
  }

  return result;
}

console.log(convertDotStringToArray('a.b.c')); // 输出：[ [ { c: null } ] ]
console.log(convertDotStringToArray('x.y.0')); // 输出：[ { y: [ null ] } ]
console.log(convertDotStringToArray('foo.bar')); // 输出：[ { bar: null } ]