Method addOperator

src/engine.js:129–138

* Add a custom operator definition * @param {string} operatorOrName - operator identifier within the condition; i.e. instead of 'equals', 'greaterThan', etc * @param {function(factValue, jsonValue)} callback - the method to execute when the operator is encountered.

(operatorOrName, cb)

   * @param {function(factValue, jsonValue)} callback - the method to execute when the operator is encountered.
   */
  addOperator (operatorOrName, cb) {
    let operator
    if (operatorOrName instanceof Operator) {
      operator = operatorOrName
    } else {
      operator = new Operator(operatorOrName, cb)
    }
    debug(`engine::addOperator name:${operator.name}`)
    this.operators.set(operator.name, operator)
  }

  /**
   * Remove a custom operator definition