在javascript正则表达式中匹配回车，换行和多个空格

Question

I am trying replace carriage return (\\r) and newline (\\n) and more than one spaces (' ' ) with single space.

I used \\W+ which helped to achieve this but, it's replacing special characters also with space. I want to change this only replace above characters.

Please help me with proper regular expression with replace method in javascript.

Answer 1

This will work: /\\n|\\s{2,}/g

var res = str.replace(/\n|\s{2,}/g, " ");

You can test it here: https://regex101.com/r/pQ8zU1/1

Answer 2

\s match any white space character [\r\n\t\f ]

您应该使用\\s{2,}来实现此任务。

Answer 3

This simple one should suit your needs: /[\\r\\n ]{2,}/g . Replace by a space.