验证对象是否不在对象数组中并抛出js

Question

我有一个对象来验证对象数组中的任何对象是否不相同const obj = {    question: "What is your dog name?",  answer: "Browny"}const array = [  {    question: "What is your name?",    answer: "Diana"  },  {    question: "What is your dog name?",    answer: "Browny"  }]我尝试过滤和比较它们，但它只检查第一个对象array.filter(arr => {  if (arr.question !== obj.question) response.status(409).json({message: 'Wrong question chosen'})   if (arr.answer !== obj.answer) response.status(409).json({message: 'Please type the right answer'})  else response.status(200)})我检查了这个JS: Filter array of objects by array, when object key is an array of objects但它让我有点困惑我希望你们能帮助我，在此先感谢！

Answer 1

再见，你可以按照这个例子：

const obj = {

    question: "What is your dog name?",

  answer: "Browny"

};

const array = [

  {

    question: "What is your name?",

    answer: "Diana"

  },

  {

    question: "What is your dog name?",

    answer: "Browny"

  }

];

let correct_answer = array.filter(el => el.question === obj.question)[0];

if (correct_answer.answer === obj.answer) console.log("correct answer");

else console.log("wrong answer");

所以你的代码变成：

let correct_answer = array.filter(arr => arr.question === obj.question);

if (correct_answer.length === 0) response.status(409).json({message: 'Wrong question chosen'}) 

else {

   if (correct_answer[0].answer === obj.answer) response.status(200);

   else response.status(409).json({message: 'Please type the right answer'});

}