在数组dna中的每个对象中获取相同的字符串(基因数组)(动态分配)

function getCommonStrings(dna) {
  let commonStrings = [];

  for (let i = 0; i < dna.length; i++) {
    let currentObj = dna[i];

    for (let key in currentObj) {
      let currentString = currentObj[key];

      for (let j = i + 1; j < dna.length; j++) {
        let nextObj = dna[j];

        for (let nextKey in nextObj) {
          let nextString = nextObj[nextKey];

          if (currentString === nextString) {
            commonStrings.push(currentString);
            break;
          }
        }
      }
    }
  }

  return commonStrings;
}

// 示例用法
let dna = [
  { gene1: "AAA", gene2: "BBB" },
  { gene1: "CCC", gene2: "AAA" },
  { gene1: "DDD", gene2: "EEE" },
  { gene1: "AAA", gene2: "FFF" }
];

let commonStrings = getCommonStrings(dna);
console.log(commonStrings);