显示来自 API 的随机问题

Question

我有一个问题。我正在做一些测验，我需要你的帮助。我们需要显示不重复的随机问题。我不知道怎么做。我是 JavaScript 的初学者。下面是我的代码。

 import { State } from "../../../framework/StateBase";

import { Conversation } from "../../../framework/ConversationBase";

import { getLanguage } from "../../../gateways/GigaaaGateway";

import { RatherGameGateway } from "../gateway/RatherGameGateway";

export class GetUserQuestionState extends State {

    constructor(conversation: Conversation, name: string) {

        super(conversation, name);

    }

    public configure(convo: any, bot: any) {

        convo.beforeThread(this.name, async convo => {

            let gateway = new RatherGameGateway();

            let age = this.conversation.payload.userAges;

            let ageCategory: number;

            try {

                let lang = await getLanguage(this.conversation.languageId, bot);

                if (age > 11) {

                    ageCategory = 0;

                    let result = await gateway.findLangCodeAndAge(lang.code, ageCategory);

                    if (this.conversation.payload.counter === 0) {

                        this.conversation.payload.params.question = result[0].questions[Math.floor(Math.random())];

                    } else if (this.conversation.payload.counter > 0) {

                        this.conversation.payload.params.next_question = result[0].questions[this.conversation.payload.counter];

                    }

                    this.conversation.payload.counter++;

        });

    }

}

看看if循环。非常感谢！

Answer 1

从高层次的角度来看，我会做如下：有 2 个问题列表（针对 2 个年龄组）。随机播放相应的一组问题从问题集中弹出最后一个元素以显示用户。重复。好的，假设您有两个问题列表或数组：let smallQuestions = ['how many fingers do you have', 'what does the dog say', 'what color is a sheep', 'how old are you'];let bigQuestions = ['how many kids do you have', 'did you do your taxes', 'do you own a car', 'do you drink alcohol'];现在让我们编写一个小函数来打乱一个数组：const shuffleArray = arr => arr  .map(a => [Math.random(), a])  .sort((a, b) => a[0] - b[0])  .map(a => a[1]);现在一些伪代码来显示场景：let smallQuestions = ['how many fingers do you have', 'what does the dog say', 'what color is a sheep', 'how old are you'];let bigQuestions = ['how many kids do you have', 'did you do your taxes', 'do you own a car', 'do you drink alcohol'];const shuffleArray = arr => arr  .map(a => [Math.random(), a])  .sort((a, b) => a[0] - b[0])  .map(a => a[1]);const askMeSomething = (age) => {  if (age > 11) {    bigQuestions = shuffleArray(bigQuestions);    return bigQuestions.pop();  } else if (age >= 4) {    smallQuestions = shuffleArray(smallQuestions);    return smallQuestions.pop() || 'out of questions';  } else return 'too young';}console.log(askMeSomething(3));console.log(askMeSomething(4));console.log(askMeSomething(5));console.log(askMeSomething(6));console.log(askMeSomething(7));console.log(askMeSomething(8));

Answer 2

该命令let order = [...Array(numberOfItems).keys()].map(x => ({val:x,rand:Math.random()})).sort((a,b) => a.rand - b.rand).map(x => x.val);将创建一个长度numberOfItems很长的列表，但项目随机排序。（项目将被 0 索引）。例如，如果 numberOfItems = 10，这将给出一个类似的列表：[9, 5, 4, 1, 8, 3, 7, 6, 0, 2]。然后，您可以简单地浏览此列表，以确定要问哪个问题而无需重复。