Javascript - 如何删除单词之间的所有额外间距 [英] Javascript - How to remove all extra spacing between words

问题描述

如何删除字符串文字中单词之间的所有额外空格？

How can I remove all extra space between words in a string literal?

"some    value"

应该成为

"some value"

此外，

"    This    should  become   something          else   too . "

成为

"This should become something else too ."

不要担心移动。。就像上面的情况一样好。我知道我可以使用 $ .trim（str）来实现尾随/结束空间的移除。但是，我不确定如何在单词技巧之间做1个空格。

Do not worry about moving the .. Just as above is fine. I know I can use $.trim(str) to achieve the trailing/ending space removal. But, I'm not sure how to do the 1 space between words trick.

推荐答案

var string = "    This    should  become   something          else   too . ";
string = string.replace(/\s+/g, " ");

此代码替换一组连续的空白字符（ \s + ）由一个空格组成。请注意，空格字符还包括制表符和换行符。如果您只想替换空格，请用空格替换 \s 。

This code replaces a consecutive set of whitespace characters (\s+) by a single white space. Note that a white-space character also includes tab and newlines. Replace \s by a space if you only want to replace spaces.

如果您还想删除开头和结尾的空格包括：

If you also want to remove the whitespace at the beginning and end, include:

string = string.replace(/^\s+|\s+$/g, "");

此行删除开头的所有空白字符（ ^ ）和结束（ $ ）。 RegExp末尾的 g 表示：全局，即匹配并替换所有出现的事件。

This line removes all white-space characters at the beginning (^) and end ($). The g at the end of the RegExp means: global, ie match and replace all occurences.

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