一切除了正则表达式

问题描述

我正在尝试删除数字的所有实例，除了我提供的数字。这是我目前所拥有的：

I am trying to remove all the instances of a number except for a number that I supply. This is currently what I have:

var ar = '10,13,9,8,13,10,5,3,1,9,5,8,10,2,6';
var removed = ar.replace(new RegExp('[^(' + 10 + ')]', 'g'), '')

结果是101110110，但我需要它除去那些完全匹配的所有内容。所以结果应该是101010，因为字符串中只有310。



提前致谢，



-Dom

The result of this is "101110110", but I need it to remove all except those with an exact match. So the result should be ""101010" as there are only 3 "10"'s in the string.

Thanks in advance,

-Dom

推荐答案

var removed = ar.match(new RegExp('\\b'+10+'\\b','g')).join('');

问候，

Niral Soni

Regards,
Niral Soni

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