js数组元素查找

var arr1 = ["a", "b", "C", "D"];
var arr2 = [
        { id: 1, name: ‘zhangsan‘, age: 18 },
        { id: 2, name: ‘lisi‘, age: 20 },
        { id: 3, name: ‘wangwu‘, age: 19 }
      ]; 

// "a"
arr1.find((item) => { return item === "a" });

// {id: 1, name: "zhangsan", age: 18}
arr2.find((item) => { return item.name === "zhangsan" });