I am in need of a specific solution. I am looking to find a string with an exact match. For example, if I want to search for None_1, I only want it to match 'None_1' and not partial matches like "xxxNone". My goal is to match only None_[any digit]. Here is the code snippet that I have:
/^None_+[0-9]{?}/
Therefore, it should only match None_1, None_2.
Remember to always anchor the expression at the end of the line for it to work properly. However, simply doing that won't fix everything. Your current expression is incorrect. I believe it should look like this:
/^None_[0-9]+$/
^ indicates the start of a line[0-9]+ matches any sequence of one or more digitsNone_ specifically matches the characters None_$ denotes the end of a lineIf you want to match only one digit, then you should exclude the +.
Your initial expression /^None_+[0-9]{?}/ functioned in the following way:
^ matched the beginning of a lineNone specifically matched None_+ matched one or more underscores[0-9] matched a single digit{? attempted to match an optional opening bracket {} matched }Here is a suggestion:
/^None_+[0-9]{?}$/
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