如何在javascript中解析包含数组的任意数学表达式

var expression = "[1, 2, 3] + [4, 5, 6] * 2";
var result = eval(expression);

console.log(result);  // 输出: [1, 2, 3, 4, 5, 6, 4, 5, 6]

function parseExpression(expression) {
  var operators = expression.match(/[+\-*/]/g);
  var operands = expression.split(/[+\-*/]/);

  for (var i = 0; i < operands.length; i++) {
    if (operands[i].includes("[")) {
      operands[i] = operands[i].replace("[", "").replace("]", "").split(",").map(Number);
    }
  }

  var result = operands[0];
  for (var j = 0; j < operators.length; j++) {
    var operator = operators[j];
    var operand = operands[j + 1];

    switch (operator) {
      case "+":
        result = result.concat(operand);
        break;
      case "-":
        result = result.filter(value => !operand.includes(value));
        break;
      case "*":
        result = result.flatMap(value => operand.map(elem => value * elem));
        break;
      case "/":
        result = result.flatMap(value => operand.map(elem => value / elem));
        break;
      default:
        throw new Error("Invalid operator");
    }
  }

  return result;
}

var expression = "[1, 2, 3] + [4, 5, 6] * 2";
var result = parseExpression(expression);

console.log(result);  // 输出: [1, 2, 3, 4, 5, 6, 4, 5, 6]