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Editorial Team
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Asked: 2026-05-28T00:23:49+00:00

I’ve been having trouble making a regular expression which changes _ to . For

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I’ve been having trouble making a regular expression which changes “_” to ” “. For example the string below:

<h2><a href=?ref=ref_url&?title=title_name_unoriginal>7s6s**title_name_unoriginal**7s6s<h2>

I’d like to change the starred text so that the underscores become spaces. I added 7s6s so that I could identify that region in a regular expression:

/7s6s[a-zA-Z0-9_]+7s6s/

So I was wondering if anyone knows of a way to change title_name_unoriginal to title name unoriginal. Note: there’s a title_name_unoriginal that comes right before which I don’t want to change. Also for the regex, the number of underscores can be from 0-100s. so it may also be title_name_un_ori_ginal.

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1 Answer

  1. Editorial Team
    str.replace(/7s6s.+7s6s/g,function($0){return $0.replace(/_/g," ")})

    Its pretty simple what is doing; first it takes all the texts that start and end with 7s6s (regex: 7s6s.+7s6s), then because the function replace accepts a function as a second argument to perform the replacement, we can make a replacement over the selected text. In this case is just another regex that replaces “_” with ” “

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