如何删除字符串中的重复空格? [英] How do I remove repeated spaces in a string?

问题描述

我有一个字符串:

foo(2个空格)bar(3个空格)baaar(6个空格)fooo"

"foo (2 spaces) bar (3 spaces) baaar (6 spaces) fooo"

如何删除其中的重复空格，使任意两个单词之间的空格不超过一个?

How do I remove repetitious spaces in it so there should be no more than one space between any two words?

推荐答案

>> str = "foo  bar   bar      baaar"
=> "foo  bar   bar      baaar"
>> str.split.join(" ")
=> "foo bar bar baaar"
>>

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