证明js中的函数参数是值传递

function setName1 (name) {
    name = 'david'
}
const name = 'donad'
setName1(name)
console.log(name)
function setName2 (obj) {
    obj.name = 'jarvis'
    obj = new Object()
    obj.name = 'jax'
}
const person = {name: 'donad'}
setName2(person)
console.log(person.name)