Function createMathOperation

test-app/public/sinon.js:15851–15875

* Creates a function that performs a mathematical operation on two values. * * @private * @param {Function} operator The function to perform the operation. * @param {number} [defaultValue] The value used for `undefined` arguments. * @returns {Function} Re

(operator, defaultValue)

         * @returns {Function} Returns the new mathematical operation function.
         */
        function createMathOperation(operator, defaultValue) {
          return function(value, other) {
            var result;
            if (value === undefined && other === undefined) {
              return defaultValue;
            }
            if (value !== undefined) {
              result = value;
            }
            if (other !== undefined) {
              if (result === undefined) {
                return other;
              }
              if (typeof value == 'string' || typeof other == 'string') {
                value = baseToString(value);
                other = baseToString(other);
              } else {
                value = baseToNumber(value);
                other = baseToNumber(other);
              }
              result = operator(value, other);
            }
            return result;
          };
        }
    
        /**
         * Creates a function like `_.over`.