js练习- 给你一个对象，求有几层

// 比如这个a中，就有四层。如何算出这四层const a = { ?b: 1, ?c() {}, ?d: { ???e: 2, ???f: { ?????g: 3, ?????h: { ???????i: 4, ?????}, ???}, ???j: { ?????k: 5, ???}, ?},};

js

function testLevel(param) { ?const isObject = typeof param === ‘object‘ && !(param instanceof Array); ?if (!isObject) return 0; ?const level = 1; ?let childrenLevel = 0; ?Object.entries(param) ???.map(([key, value]) => { ?????const valueLevel = testLevel(value, level); ?????if (valueLevel > childrenLevel) childrenLevel = valueLevel; ???}); ?return level + childrenLevel;}

js练习- 给你一个对象，求有几层

原文地址：https://www.cnblogs.com/qiqi715/p/10419697.html