尚硅谷Java高级工程师2022
cache.set(a, result);
for (let key in a) {
if (a.hasOwnProperty(key)) {
result[key] = deepCopy(a[key], cache);
}
}
return result;
}
return a;}const a = {
number: 1, bool: false, str: 'hi', empty1: undefined, empty2: null,
array: [
{name: 'frank', age: 18},
{name: 'jacky', age: 19}
],
date: new Date(2000, 0, 1, 20, 30, 0),
regex: /\.(j|t)sx/i,
obj: {name: 'frank', age: 18},
f1: (a, b) => a + b,
f2: function (a, b) { return a + b }}a.self = a;
