我想用javascript检查按钮是否按特定顺序点击(我正在使用" Simon Game")。订单是数字数组,每个数字对应于某个div(按钮)。但是我的代码有问题,而且它不起作用。
正确运行的代码执行此操作:
如果我单击右div-button
并且如果我犯了错误则返回false
,如果点击了所有序列,则返回true
。
function getRandArray() {
var array = [];
for (var i = 0; i < 22; i++) {
array[i] = Math.floor(Math.random() * 4 + 1);
}
return array;
}
var array = getRandArray();
var elems = document.querySelectorAll('.bigButton');
function checkSound(level) {
var counter = 0;
var checkArr = array.slice(0, level - 1);
console.log(checkArr);
for (var i = 0; i < elems.length; i++) {
elems[i].addEventListener("click", function(e) {
if (this.dataset.sound === checkArr[counter]) {
counter++;
console.log('right');
return true;
}
return false;
})
}
}
checkSound(5);
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.bigButton {
height: 25px;
width: 35px;
border: 2px solid #464646;
margin: 1em;
text-align: center;
padding-top: 5px;
display: inline-block;
}
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<div class="bigButton" id="greenButton" data-sound="1">1
</div>
<div class="bigButton" id="redButton" data-sound="2">2
</div>
<div class="bigButton" id="yellowButton" data-sound="3">3
</div>
<div class="bigButton" id="blueButton" data-sound="4">4
</div>
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答案 0 :(得分:1)
尝试在===
中替换==
:
if (this.dataset.sound == checkArr[counter]) {
由于checkArr[counter]
是一个数字,而this.dataset.sound
是一个字符串,三等于===
,因此也会比较该类型,因此永远不会达到这种情况。
或者您也可以使用parseInt()
将字符串解析为整数,如:
if (parseInt(this.dataset.sound) === checkArr[counter]) {
希望这有帮助。
function getRandArray() {
var array = [];
for (var i = 0; i < 22; i++) {
array[i] = Math.floor(Math.random() * 4 + 1);
}
return array;
}
var array = getRandArray();
var elems = document.querySelectorAll('.bigButton');
function checkSound(level) {
var counter = 0;
var checkArr = array.slice(0, level - 1);
console.log(checkArr);
for (var i = 0; i < elems.length; i++) {
elems[i].addEventListener("click", function(e) {
if (this.dataset.sound == checkArr[counter]) {
counter++;
console.log('right');
return true;
}
return false;
})
}
}
checkSound(5);
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.bigButton {
height: 50px;
width: 80px;
border: 2px solid #464646;
margin: 1em;
text-align: center;
padding-top: 15px;
}
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<div class="bigButton" id="greenButton" data-sound="1">1
</div>
<div class="bigButton" id="redButton" data-sound="2">2
</div>
<div class="bigButton" id="yellowButton" data-sound="3">3
</div>
<div class="bigButton" id="blueButton" data-sound="4">4
</div>
<br><br><br>
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