What is the best way to allow my limit to be as greedy as possible?

I'm facing an issue with the code below where it currently only matches MN. How can I modify it to also match KDMN?


        var str = ' New York Stock Exchange (NYSE) under the symbol "KDMN."';
        var patt = new RegExp("symbol.+([A-Z]{2,5})");
        var res = patt.exec(str);
        console.log(res[1]);
    

Answer №1

To make your regex pattern more efficient, try using a lazy quantifier like +?:

/symbol.+?([A-Z]{2,5})/
         ^

Check out the sample text on this regex demo. By replacing the greedy .+, you can ensure it matches the minimum required characters for the next subpattern.

Another approach is to write a slightly more detailed version:

/symbol\s+"([A-Z]{2,5})/

View a different example on this alternate regex demo. In this variation, symbol matches the specific string 'symbol', \s+ will find one or more spaces, " looks for a double quote, and ([A-Z]{2,5}) captures 2 to 5 uppercase ASCII letters in Group 1.

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