Need to accept only % symbol as an input string

2021-02-03 11:49:09分类：常见问题 / JavaScript 答疑阅读(32)评论(0)

I want to accept only % symbol(optional) as a string variable with a number, as in input as percentage. E.G, 1000% or 100% or maybe 2000% or plain string input as 1000 or 2000. Can we do it with help of a regular expression? or maybe some other validation. Please help
Why not? Did you try anything?

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