simple-squiggle

A restricted subset of Squiggle
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custom_evaluate_using_import.js (676B)

      1 const { create, evaluateDependencies } = require('../..')
      2 
      3 // custom implementations of all functions you want to support
      4 const add = (a, b) => a + b
      5 const subtract = (a, b) => a - b
      6 const multiply = (a, b) => a * b
      7 const divide = (a, b) => a / b
      8 
      9 // create a mathjs instance with hardly any functions
     10 // there are some functions created which are used internally by evaluate though,
     11 // for example by the Unit class which has dependencies on addScalar, subtract,
     12 // multiplyScalar, etc.
     13 const math = create(evaluateDependencies)
     14 
     15 // import your own functions
     16 math.import({ add, subtract, multiply, divide }, { override: true })
     17 
     18 console.log(math.evaluate('2 + 3 * 4')) // 14