var arr = [
{code: a, poll: 7}, {code: b, poll: 2}, {code: c, poll: 18}, {code: a, poll: 5}, {code: c, poll: 12}, {code: a, poll: 1}];

var arr2 = [
{code: a, poll: 13},{code: b, poll: 2},{code: c, poll: 30}

];
如何实现arr → 到arr1 的转变，且code值 不仅仅为 a b c 也可能为 adsdsd dsdsd a223 任意值 如何实现 类似转变
回复内容： var arr = [
{code: a, poll: 7}, {code: b, poll: 2}, {code: c, poll: 18}, {code: a, poll: 5}, {code: c, poll: 12}, {code: a, poll: 1}];

var arr2 = [
{code: a, poll: 13},{code: b, poll: 2},{code: c, poll: 30}

];
如何实现arr → 到arr1 的转变，且code值 不仅仅为 a b c 也可能为 adsdsd dsdsd a223 任意值 如何实现 类似转变