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Editorial Team
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Asked: 2026-05-13T13:59:00+00:00

I have a Ruby String that contains decimal-containing numbers. What’s the best way to

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I have a Ruby String that contains decimal-containing numbers. What’s the best way to convert this into a decimal (fixed-point)?

“Best” means:

  • Reliable given a wide range of input options
  • Simple to write
  • Easy to read
  • DRY

…in roughly that order.

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1 Answer

  1. Editorial Team

    (Found it myself after a bit of digging)

    BigDecimal is the standard Ruby fixed-point type, and it’s constructor takes a String and handles the parsing for you:

    BigDecimal.new("123.45")
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