所以基本上我有两个数组:一个单词数组和一个定义数组。单词数组由一组单词组成,这些单词由定义数组中的相应定义匹配:即单词[0]=定义[0],依此类推。我希望实现的是,我想给用户一个测试,其中单词数组中的一个随机单词出现,用户必须在文本框中输入定义,这样当用户输入最后一个定义时,没有单词被重复,也没有单词被遗漏。我能够实现其中的一些,这是我丑陋的代码:
var word = "<?php echo $word; ?>";//getting words from db to a js array
var def = "<?php echo $def; ?>";//same for definition
var finalword = word.split(",");//final word array
var finaldef = def.split(",");//final definition array
function randomize() {
document.getElementById("answer").value = "";
document.getElementById("success").innerHTML = "";
document.getElementById("fail").innerHTML = "";
var random = finalword[Math.floor(Math.random()*finalword.length)];//randomize the word from array
document.getElementById("question").innerHTML = random;
for(var i=0;i<=finalword.length;i++) { //find the index of the random word and match it with the index of definition
if(finalword[i]==random) {
console.log(i);
var randomdef = i;
answerdef = finaldef[randomdef];
console.log(answerdef);
}
}
}
function extract(a) {
//check if indices are equal
var answer = document.getElementById("answer").value;
console.log(answer);
if(answerdef == answer) {
var right = document.getElementById("success");
document.getElementById("fail").innerHTML = "";
right.innerHTML = "Whoopie, correct answer, let's move onto the next question.";
right.className = right.className + "animated infinite pulse";
}
else {
var wrong = document.getElementById("fail");
var input = document.getElementById("input");
input.className = input.className + "animated infinite shake";
wrong.innerHTML = "Oopsie, hold your horses. The answer is incorrect.";
wrong.className = wrong.className + "animated infinite pulse";
}
} //ignore the css and other calls.
如果我是你,我不会用数组来做这件事,但由于你显然在学习,我将给你一个简单的例子。尽量把它说清楚。
您可以随意运行这个片段来查看它的运行情况,并复制我添加的所有css和html。我没有使用任何单独的库,因为您没有专门针对任何库,但可以通过使用例如jQuery或下划线来简化代码。
//Define the variables we will use in our code
var words = ["cat", "dog", "mouse", "horse"];
var defin = ["definition of cat",
"definition of dog",
"definition of mouse",
"definition of horse"
];
var score = 0;
var total = 0;
var currentIndex = -1;
//Place first question
nextQuestion();
//Handle the button click
document.getElementById('next').onclick=function(){
if (document.getElementById("input").value == "") {
//User hasn't entered any text
} else {
if (document.getElementById("input").value == defin[currentIndex]) {
//Correct answer
document.getElementById("score").className = "good";
score++;
} else {
//Incorrect answer
document.getElementById("score").className = "bad";
}
//Update scores
document.getElementById("score").innerHTML = score;
document.getElementById("total").innerHTML = total;
//Clear the input
document.getElementById("input").value = "";
nextQuestion();
}
};
function nextQuestion() {
//Next question, update the answer index
currentIndex = Math.floor(Math.random() * words.length);
document.getElementById("question").innerHTML = words[currentIndex];
total++;
}
.bad {
color: red;
}
.good {
color: green;
}
<h1>Score:<span id="score">0</span> of <span id="total">0</span></h1>
<h3 id="question"></h3>
<input id="input" />
<Button id="next">Next</Button>