vue 向后台传递数组对象的参数

// var aaa = Object.assign(paramsL, this.form);
console.log(typeof String(this.form.guide))
var paramsL = {
  guide: String(this.form.guide),
  menus: JSON.stringify(this.form.menus)
}
saveMenu(paramsL).then(response => {
  console.log(response)
}).catch(function(error) {
  console.log(error);
});