Why is 0.1 + 0.2 returns 0.3000000004 in JavaScript?
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Have you performed simple arithmetic operations like 0.1 + 0.2? You might have gotten something strange: 0.1 + 0.2 = 0.3000000004.

Have you performed simple arithmetic operations like 0.1 + 0.2? You might have gotten something strange: 0.1 + 0.2 = 0.30000000000000004.

  • ericjmorey@programming.dev
    1·
    1 month ago

    Perhaps the following rewording of your last sentence would be easier for readers to follow along:

    With a lack of precision, 1/3 might become 0.33333333. When evaluating the expression 1/3 + 1/3 + 1/3, using 0.33333333 as an approximate representation of 1/3 will return a result of 0.99999999, instead of the correct answer of 1.