单选题
下面代码的输出是： function func(source) {&nb...
发布于 2022-03-02 16:49:58
下面代码的输出是：
function func(source) {
var target = {}
for (var key in source) {
if (Object.prototype.hasOwnProperty.call(source, key)) {
if (typeof source[key] === 'object') {
target[key] = func(source[key])
} else {
target[key] = source[key]
}
}
}
return target
}
var a = { a1: "a1", a2: { b1: "b1", b2: "b2" }, a3: undefined, a4: null, a5: 1 }
var b = func(a)
console.log(b)
登录后免费查看答案
关注者
0
被浏览
22
