对象深拷贝

// 对象深拷贝 const deepClone = function deepClone(obj) { const c = obj instanceof Array ? [] : {}; Object.entries(obj).forEach((item) => { const prop = obj[item[0]]; if (typeof prop === 'object') { if (prop instanceof Array) { c[item[0]] = []; prop.forEach((item1) => { if (typeof item1 !== 'object') { c[item[0]].push(item1); } else { c[item[0]].push(deepClone(item1)); } }); } else { c[item[0]] = deepClone(prop); } } else { c[item[0]] = prop; } }); return c; };