New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

第309题(2020-09-22)：实现格式化输出，比如输入 999999999，输出 999,999,999? #312

Open

qappleh opened this issue Sep 22, 2020 · 3 comments

Labels

Owner

qappleh commented Sep 22, 2020

No description provided.

qappleh added js 编程题 labels

Owner Author

qappleh commented Oct 14, 2020

使用正则：
var f = '99999999999'.replace(/\d{1,3}(?=(\d{3})+$)/g, '$&,');

xiaoma-FrontEnd commented Oct 30, 2020

顶

cuo9958 commented Nov 5, 2020

'99999999999'.replace(/(?=(\d{3})+$)/g, '$&,')
这个也可以，前面的数字匹配是为了什么？

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment