Guess the output of the following code:

Guess the output of the following code:

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: interviewbit, javascript, topic-specific, frontend

参考答案摘要

var x = 23; (function(){ var x = 43; (function random(){ x++; console.log(x); var x = 21; })(); })(); Answer: Output is NaN . random() function has functional scope since x is declared and hoisted in ...

本题提供 STAR 原则详细解答和技术解析，登录匠人学院学习中心即可查看完整答案。