比较两个逗号分隔的字符串并列出公用值

function compareStrings(str1, str2) {
  const arr1 = str1.split(",");
  const arr2 = str2.split(",");
  const commonValues = [];

  for (let i = 0; i < arr1.length; i++) {
    if (arr2.includes(arr1[i])) {
      commonValues.push(arr1[i]);
    }
  }

  return commonValues;
}

const string1 = "apple,banana,orange";
const string2 = "banana,grape,orange";

const result = compareStrings(string1, string2);
console.log(result); // 输出 ["banana", "orange"]