去掉对象中值为null和undefined的空字段

const v1 = {
　　a: '1',
　　b: 20,
　　c: null,
　　d: undefined,
　　}

const v1 = {
　　a: '1',
　　b: 20,
　　}



const params = Object.keys(data)

    .filter((key) => data[key] !== null && data[key] !== undefined)

    .reduce((acc, key) => ({ ...acc, [key]: data[key] }), {});

https://www.jianshu.com/p/4d76644b0e42