拥有某个相同键值的对象集合进行去重

例如数组：

const data = [ 
 {    name: "Kris",    age: "24"  }, 
 {    name: "Andy",    age: "25"  },
 {    name: "Kitty",    age: "25"  },  
 {    name: "Andy",    age: "25"  },
 {    name: "Kitty",    age: "25"  }, 
 {    name: "Andy",    age: "25"  }, 
 {    name: "Kitty",    age: "25"  }
];
现在我们要去重里面name重复的对象，这时候我们可以利用reduce，例子如下

const dataReducer = (prev, cur, idx) => { 
   let obj = {};  
   const { name } = cur;  
   obj[name] = cur;  
   return {    ...prev,    ...obj  };
};
const reducedData = data.reduce(dataReducer, {});
let newData = Object.values(reducedData);