判断数组或对象里是否有值

function checkArray(arr) {
  for (let i = 0; i < arr.length; i++) {
    const obj = arr[i];
    for (const key in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, key) && obj[key] !== '') {
        return true;
      }
    }
  }
  return false;
}

const arr1 = [{a:'1',b:''}];
console.log(checkArray(arr1)); // 输出 true

const arr2 = [{c:'',d:''}];
console.log(checkArray(arr2)); // 输出 false

function isEmptyObject(obj) {
  let isEmpty = true;
  for (const key in obj) {
    if (key === '_X_ROW_KEY') continue;
    const value = obj[key];
    const isEmptyValue = value === undefined || value === null || Number.isNaN(value) || (typeof value === 'string' ? value.trim() === '' : false) || (Array.isArray(value) && value.length === 0);
    if (isEmptyValue) {
      isEmpty = true;
    } else {
      isEmpty = false;
      break;
    }
  }
  return isEmpty;
}

const arr1 = {a:'',b:''};
console.log(isEmptyObject(arr1)); // 输出 true

const arr2 = {a:'',_X_ROW_KEY:'----'};
console.log(isEmptyObject(arr2)); // 输出 true

const arr3 = {a:'1',_X_ROW_KEY:'----'};
console.log(isEmptyObject(arr3)); // 输出 false