数组取对象

var arr1 = [

{ id: "1", name: "one", age: "one" },

{ id: "2", name: "two", age: "two" },

{ id: "3", name: "three", age: "three" },

{ id: "4", name: "four", age: "four" },

{ id: "5", name: "five", age: "five" },

{ id: "6", name: "sex", age: "sex" },

{ id: "7", name: "qi", age: "qi" }

];

var arr2 = [1, 3, 5, 7];

var arr = [];

for (var i = 0; i < arr2.length; i++) {

for (var j = 0; j < arr1.length; j++) {

if (arr2[i] == parseInt(arr1[j].id)) {

let param = {

id: arr1[j].id,

name: arr1[j].name

};

arr.push(param);

}

}

}