Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Ask a Question
Welcome To Ask or Share your Answers For Others

Categories

ts 定义一个num：number 但是 num默认值不想写数字 怎么破

0 votes
1.7k views
in Technique[技术] by (71.8m points)

ts 定义一个num：number 但是 num默认值不想写数字 怎么破

ts 定义一个num：number 但是 num默认值不想写数字 并且if判断的时候偶默认值还是false 怎么破 写null和undefined都报错


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)

num: number | null


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 OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

Just Browsing Browsing

2.1m questions

2.1m answers

60 comments

57.0k users

Most popular tags

Powered by Question2Answer
Donate
Theme by Q2A Market&&OStack.cn
...