API v3.0.x

Methods

new Formula.Parser(formula, [options])

Creates a new formula parser object where:

• formula - the formula string to parse.
• options - optional settings:
  • constants - a hash of key-value pairs used to convert constants to values.
  • tokenRx - a regular expression used to validate token variables.
  • reference - a variable resolver factory function with signature function(variable) which returns a function with signature function(context) returning the resolved variable.
  • functions - a hash of key-value pairs used to resolve formula functions.

parser.evaluate([context])

Evaluate the formula where:

• context - optional object with runtime formula context used to resolve variables.

Returns the string or number outcome of the resolved formula.