Welcome toVigges Developer Community-Open, Learning,Share
Ask a Question
Welcome To Ask or Share your Answers For Others

Categories

javascript：if在条件为false的情况下仍然执行代码是为什么？

0 votes
2.7k views
in Technique[技术] by (71.8m points)

javascript：if在条件为false的情况下仍然执行代码是为什么？

条件为changeNum !== undefined && changeNumIndex !== undefined,
p1为执行成功的现象，p2为我复制条件过去重新执行，但是发现执行失败。
image.png
image.png


与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

findIndex返回-1不是undefined。你这是chrome的调试？


与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
Welcome to Vigges Developer Community for programmer and developer-Open, Learning and Share

Just Browsing Browsing

2.1m questions

2.1m answers

63 comments

56.6k users

Most popular tags

Snow Theme by Q2A Market
Powered by Question2Answer
...