我知道这是一个广泛的问题,但我还是新手,不知道该搜索/询问什么。
我有一个用于危险游戏的JavaScript系列。我敢肯定,这样做有更好的方法,因为有很多重复。我在想一些带有一些变量,数组和/或在调用函数时传递ID的东西,但不知道从哪里开始。任何想法,将不胜感激。我并不是要任何人去做这项工作,只是给我一些想法和例子,以说明前进的方向。
df=sf.withColumn("message",F.concat_ws(df.data.message))
这就是我在HTML页面上调用它的方式:
var score = 0;
//Disable the question button
function disableButton(btnID){
document.getElementById(btnID.id).disabled = true;
}
//Show current score
function endQuestion(){
alert ("Your total score is now " +score);
}
//Toggle Images On
function showImgBtn1(){
document.getElementById('btn1pic').style.visibility = 'visible';
setTimeout(askQuestion1,3000);
}
function showImgBtn2(){
document.getElementById('btn2pic').style.visibility = 'visible';
setTimeout(askQuestion2,3000);
}
//This keeps going for every question--repeated 9 to 20 times
//Questions
function askQuestion1()
{
var answer = prompt ("What body system contains the heart, blood, arteries, and veins?") .toLowerCase();
if (answer==="circulatory") {
alert ("Correct!");
score += 100;
}
else {
alert ("Sorry, incorrect.");
score -= 100;
}
endQuestion();
document.getElementById('btn1pic').style.visibility = 'hidden';
}
function askQuestion2()
{
var answer = prompt ("What body system contains the brain, spinal cord, and nerves?") .toLowerCase();
if (answer==="nervous") {
alert ("Correct!");
score += 200;
}
else {
alert ("Sorry, incorrect.");
score -= 200;
}
endQuestion();
document.getElementById('btn2pic').style.visibility = 'hidden';
}
//This keeps going for every question--same code, just replace the question and answer repeated 9 to 20 times
这是我在HTML页面上设置图片的方式:
<td><button id="btn1" onclick="showImgBtn1();disableButton(btn1)">100</button></td> //each button has a successive ID
谢谢您的建议!
答案 0 :(得分:5)
我看到一些可以改进的地方。注意到您的代码中有很多重复是一件好事。首先,功能askQuestion1
和askQuestion2
的功能完全相同,除了一些变量。因此,您可以执行一个功能并将不同的值存储到一个对象中。像这样:
let values = {
question1: {
questionText: "What body system contains the heart, blood, arteries, and veins?",
correctValue: "circulatory",
id: 'btn1pic'
},
question2: {
questionText: "What body system contains the brain, spinal cord, and nerves?",
correctValue: "nervous",
id: 'btn2pic'
}
}
let score = 0;
function askQuestion(question)
{
var answer = prompt(question.questionText);
// validate null and check if the answer is correct.
if (answer && answer.toLowerCase() === question.correctValue) {
alert ("Correct!");
score += 100;
}
else {
alert ("Sorry, incorrect.");
score -= 100;
}
endQuestion();
document.getElementById(question.id).style.visibility = 'hidden';
}
function endQuestion() {}
askQuestion(values.question1);
askQuestion(values.question2);
正如评论中的Edric所指出的,最好验证用户没有取消提示,从而使answer
变量中的值为空。
您甚至可以将问题保存在数组中,并使用for
循环询问每个问题:
let values = [
{
questionText: "What body system contains the heart, blood, arteries, and veins?",
correctValue: "circulatory",
id: 'btn1pic'
},
{
questionText: "What body system contains the brain, spinal cord, and nerves?",
correctValue: "nervous",
id: 'btn2pic'
}
]
/* ... */
for(let i = 0; i < values.length; i ++) {
askQuestion(values[i]);
}
showImgBtn
函数也是如此,拥有一个问题变量将减少重复。
//Toggle Images On
function showImgBtn(question){
document.getElementById(question.id).style.visibility = 'visible';
setTimeout(() => { askQuestion(question); },3000);
}
除此之外,它还可以接缝。
我也强烈建议您也查看评论,许多人都在建议改善我的答案的方法。