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 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} Returns the new mathematical operation function.
 */
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} Returns the new mathematical operation function.
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 } 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;
  };
}
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 that performs a mathematical operation on two values.
Creates a function that performs a mathematical operation on two values .