如何检查数组是否是特定对象的集合？

function isArraySubsetOfObject(arr, obj) {
  for (var i = 0; i < arr.length; i++) {
    if (!obj.hasOwnProperty(arr[i])) {
      return false;
    }
  }
  return true;
}

// 示例用法
var arr = ['name', 'age', 'gender'];
var obj = { name: 'John', age: 25, gender: 'male' };

console.log(isArraySubsetOfObject(arr, obj)); // 输出 true

function isArraySubsetOfObject(arr, obj) {
  return arr.every(function(item) {
    return Object.keys(obj).includes(item);
  });
}

// 示例用法
var arr = ['name', 'age', 'gender'];
var obj = { name: 'John', age: 25, gender: 'male' };

console.log(isArraySubsetOfObject(arr, obj)); // 输出 true