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Editorial Team
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Asked: 2026-05-28T07:08:25+00:00

I used read to get a line from a file. The documentation said read

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I used read to get a line from a file. The documentation said read returns any, so is it turning the line to a string? I have problems turning the string "1" to the number 1, or "500.8232" into 500.8232. I am also wondering if Racket can directly read numbers in from a file.

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  1. Editorial Team

    Check out their documentation search, it’s complete and accurate. Conversion functions usually have the form of foo->bar (which you can assume takes a foo and returns a bar constructed from it).

    You sound like you’re looking for a function that takes a string and returns a number, and as it happens, string->number does exist, and does pretty much exactly what you’re looking for.

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