javascript - 正则表达式用单个空格替换多个空格(Regex to replace multiple spaces with a single space)

Question

Given a string like:

(给定一个像这样的字符串：)

"The dog      has a long   tail, and it     is RED!"

What kind of jQuery or JavaScript magic can be used to keep spaces to only one space max?

(什么样的jQuery或JavaScript魔术可以用来将空间限制为最多一个空间？)

Goal:

(目标：)

"The dog has a long tail, and it is RED!"

  ask by AnApprentice translate from so

Answer 1

Given that you also want to cover tabs, newlines, etc, just replace \s\s+ with ' ' :

(假设您还想覆盖制表符，换行符等，只需将\s\s+替换为' ' ：)

string = string.replace(/ss+/g, ' ');

If you really want to cover only spaces (and thus not tabs, newlines, etc), do so:

(如果您真的只想覆盖空格（而不是制表符，换行符等），请这样做：)

string = string.replace(/  +/g, ' ');