JavaScript 中 find 和 filter 的区别

let arr = [
  {
    name: 'Rick',
    age: 60
  },
  {
    name: 'Rick',
    age: 70
  },
  {
    name: 'Morty',
    age: 14
  }
]
let findResult = arr.find(i => i.name === 'Rick')
let filterResult = arr.filter(i => i.name === 'Rick')

console.log(arr); 
/*  输出结果
  [
    {
      name: "Rick",
      age: 60
    },
    {
      name: "Rick",
      age: 70
    },
    {
      name: "Morty",
      age: 14
    }
  ]
*/
console.log(findResult);   // {name: "Rick", age: 60}
console.log(filterResult);  // [{name: "Rick", age: 60}, {name: "Rick", age: 70}]