How to write a regular expression for the place of birth field?

Question

JavaScript

Good afternoon, please tell me there are such two lines of regular expressions in JavaScript

const str = /([\ \-\–\'\`\’\.\,])\1/;
const str2 = /(?=[\ \-\–\'\`\’\.\,=]{2})/; но они не работают так как надо

to validate the "Place of Birth" input in the form.
There is a clear requirement for the validation of this field only - combinations of text with the symbols "." "space", "," "space" and "." "," "space"; there should be only such a combination as in this picture -
Help me write the correct regular expression

Answer 1

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