含连字符的Checkbox提交JSON数据失败的解决方案咨询

Got it, let's fix this issue right up! The problem here is straightforward: when you use a key with a hyphen (like custom-1798_0) directly in a JavaScript object literal without quotes, the interpreter treats the hyphen as a subtraction operator—causing a syntax error that breaks JSON serialization. Since you can't change the CMS-generated field name, here are two simple, working fixes:

方法1：用引号包裹带特殊字符的键名 #

修改你的userInfo对象定义，把带连字符的键名用双引号（或单引号）括起来，这样JavaScript就会把它识别为完整的键名：

userInfo = {
  firstname: firstname,
  lastname: lastname,
  email: email,
  country: country,
  "custom-1798_0": writerep? 1 : 0, // 用引号包裹带连字符的键
  email_opt_in: emailopt ? 1 : 0
};

方法2：使用括号语法赋值 #

先创建空对象，再通过括号语法添加带连字符的键，这种方式同样能避开语法问题：

var userInfo = {};
userInfo.firstname = firstname;
userInfo.lastname = lastname;
userInfo.email = email;
userInfo.country = country;
userInfo["custom-1798_0"] = writerep ? 1 : 0; // 括号语法处理特殊键名
userInfo.email_opt_in = emailopt ? 1 : 0;

两种方法都能让userInfo对象正确包含custom-1798_0这个键，后续postUserData在序列化对象为JSON时，也能正常解析这个带连字符的键名，完全不需要修改CMS生成的表单字段。

内容的提问来源于stack exchange，提问作者Georgia O'Brien