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mathjs

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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

mathjs.org

josdejong/mathjs

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"use strict"; module.exports = { 'name': 'hasNumericValue', 'category': 'Utils', 'syntax': ['hasNumericValue(x)'], 'description': 'Test whether a value is an numeric value. ' + 'In case of a string, true is returned if the string contains a numeric value.', 'examples': ['hasNumericValue(2)', 'hasNumericValue("2")', 'isNumeric("2")', 'hasNumericValue(0)', 'hasNumericValue(bignumber(500))', 'hasNumericValue(fraction(0.125))', 'hasNumericValue(2 + 3i)', 'hasNumericValue([2.3, "foo", false])'], 'seealso': ['isInteger', 'isZero', 'isNegative', 'isPositive', 'isNaN', 'isNumeric'] };