如何在页面刷新时保留所选引导卡的边框?

Question

我现在有 6 张引导卡，我编写了用于在本地存储中存储每张卡详细信息的代码，并且在单击时卡将获得边框，现在我想要的是页面刷新，我应该保留卡的边框 我的 html 代码是：

<div class="row">
<div class="col-4" onclick="getGoal(1)">
<div class="card4 mt-3" id="room_1" style="width: 12rem; height:9rem;">
<center>
<div class="card-body">
<p class="card-text mt-4" id="cont_1"><b>I am redecorating</b></p>
</div>
</center>
</div>
</div>
<div class="col-4" onclick="getGoal(2)">
<div class="card4 mt-3" id="room_2" style="width: 12rem; height:9rem;">
<center>
<div class="card-body">
<p class="card-text mt-4" id="cont_2"><b>I am Moving</b></p>
</div>
</center>
</div>
</div>
<div class="col-4" onclick="getGoal(3)">
<div class="card4 mt-3" id="room_3" style="width: 12rem; height:9rem;">
<center>
<div class="card-body">
<p class="card-text mt-4" id="cont_3"><b>I need help with a layout</b></p>
</div>
</center>
</div>
</div>
<div class="col-4" onclick="getGoal(4)">
<div class="card4 mt-3" id="room_4" style="width: 12rem; height:9rem;">
<center>
<div class="card-body">
<p class="card-text mt-4" id="cont_4"><b>I am looking for a species</b></p>
</div>
</center>
</div>
</div>
<div class="col-4" onclick="getGoal(5)">
<div class="card4 mt-3" id="room_5" style="width: 12rem; height:9rem;">
<center>
<div class="card-body">
<p class="card-text mt-4" id="cont_5"><b>I am moving with someone</b></p>
</div>
</center>
</div>
</div>
<div class="col-4" onclick="getGoal(6)">
<div class="card4 mt-3" id="room_6" style="width: 12rem; height:9rem;">
<center>
<div class="card-body">
<p class="card-text mt-4" id="cont_6"><b>Other</b></p>
</div>
</center>
</div>
</div>
</div>
<!--Loop ends-->
<a class="link mt-3"><u>Dont see your room?</u></a>
<div class="row mb-3">
<div class="col-4 mr-5">
<a href="/modsy/rooms/" class="previous" onClick="history.go(-1);">&laquo; Home</a>
</div>
<div class="col-4 ml-5">
<a href="/modsy/furniture" class="next">Next &raquo;</a>
</div>
</div>

我的JS代码：

$(document).ready(function(){
// goals
$("#room_1").click(function(){
$("#room_1").toggleClass("blue");
});
$("#room_2").click(function(){
$("#room_2").toggleClass("blue");
});
$("#room_3").click(function(){
$("#room_3").toggleClass("blue");
});
$("#room_4").click(function(){
$("#room_4").toggleClass("blue");
});
$("#room_5").click(function(){
$("#room_5").toggleClass("blue");
});
$("#room_6").click(function(){
$("#room_6").toggleClass("blue");
});
$("#room_7").click(function(){
$("#room_7").toggleClass("blue");
});
$("#room_8").click(function(){
$("#room_8").toggleClass("blue");
});
$("#room_9").click(function(){
$("#room_9").toggleClass("blue");
});
});
var goal = [];
var goalIds = [];
function getGoal(id) {
if (goal.length > 0) {
var data = {
id: id,
content: $("#cont_" + id).text()
}
var x = JSON.stringify(data)
var index = goal.indexOf(x)
if (index == -1) {
goal.push(x);
} else {
goal.splice(index, 1);
}
} else {
var data = {
id: id,
content: $("#cont_" + id).text()
}
var x = JSON.stringify(data);
goal.push(x);
}
localStorage.setItem("goal", JSON.stringify(goal));
goalIds = goal.map(element => JSON.parse(element).id);
console.log(goalIds);
issample();
}
function issample() {
$("#goal").val(goalIds);
console.log(goalIds);
}
function initGoals() {
var storedNames = JSON.parse(localStorage.getItem("goal") || '[]');
goalIds = storedNames.map(element => JSON.parse(element).id);
}

我的代码笔链接是：https://codepen.io/lakshmi123__/pen/xxbzwNP

Answer 1

function initGoals() {
goal = JSON.parse(localStorage.getItem("goal") || '[]');
goalIds = goal.map(element => JSON.parse(element).id);
goalIds.forEach(function(i){$("#room_"+i).addClass('blue');});
}
initGoals();

但是，您正在使用该函数填充goalIds变量，但是您忘记了填充goal变量;)