How to split n chars of a string?

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Manickam SP

• September 14, 2019 02:19

Is there a way in fastly to extract first and last n chars from a string? I am quite new to fastly and so far I couldn't find a way to do this

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  Justin

  • September 15, 2019 22:42

  Hi

  The closest we have is to use a regular expression to capture the characters.

  Check this fiddle for an example of how you can accomplish what you've described. Run it to see the output based on the input string.

  Have a look at this Regular Expression Cheat Sheet for more details on using regexes on our platform.

  What are you looking to accomplish exactly?

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  Manickam Subbiah

  • September 16, 2019 15:51

  Thanks Justin. I can make use of regex.

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  Justin

  • September 25, 2019 05:26

  Quick update for you! We also have a native substring function you can use for this: https://docs.fastly.com/vcl/functions/substr/

  `substr("abcdefg", -4, -3)` is "de"

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