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Is there a mature library for doing decimal-based math, possibly arbitrary-precision, in JavaScript?
Edit: I want this information for a reference page on floating-point-related problems and alternatives to use when binary floating-point is inappropriate: http://floating-point-gui.de/
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JavaScript has only one type of number. Numbers can be written with or without decimals.
Use the toFixed() method in JavaScript to format a number with two decimals. The toFixed() method formats a number with a specific number of digits to the right of the decimal.
Use the toFixed() method to format a number to 2 decimal places, e.g. num. toFixed(2) . The toFixed method takes a parameter, representing how many digits should appear after the decimal and returns the result.
JavaScript supports one mathematical type, 64-bit floating point numbers.
As their author, I recommend bignumber.js or big.js, 'a small, fast Javascript library for arbitrary-precision arithmetic with decimal numbers'.
For a more mature library, the ICU4J BigDecimal translation is also recommended.
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