Decoding Why 0.6 + 0.3 = 0.8999999999999999 in JS and How to Solve?

• decimal.js

  22 6,113 0.0 JavaScript

  An arbitrary-precision Decimal type for JavaScript

ii) Third-Party Libraries There are various libraries like math.js, decimal.js, big.js that solve the problem. Each library functions according to its documentation. This approach is comparatively better.

• big.js

  9 4,679 0.0 JavaScript

  A small, fast JavaScript library for arbitrary-precision decimal arithmetic.

ii) Third-Party Libraries There are various libraries like math.js, decimal.js, big.js that solve the problem. Each library functions according to its documentation. This approach is comparatively better.

• SurveyJS

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  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• mathjs

  22 14,027 9.2 JavaScript

  An extensive math library for JavaScript and Node.js

ii) Third-Party Libraries There are various libraries like math.js, decimal.js, big.js that solve the problem. Each library functions according to its documentation. This approach is comparatively better.

• 0.30000000000000004

  245 1,398 2.0 CSS

  Floating Point Math Examples

In everyday math, we know adding 0.6 + 0.3 equals 0.9, right? But when we turn to computers it results in 0.8999999999999999. Surprisingly, this doesn’t just happen only in JavaScript; it’s the same in many programming languages like Python, Java, C too. Also, it’s not just about this specific calculation. There are many more decimal calculations showing similar not-quite-right answers.

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