我正在尝试在JS中构建轮播,该轮播使用数组来存储我的数据。 我希望左侧的框显示“客户端”的值,右侧的框显示“候选”的值。
尽管我认为这是正确的,但我似乎无法使其正常运行?
let testimonials = [{
client: "Raphel",
candidate: "male"
},
{
client: "Tom",
candidate: "male"
},
{
client: "Jerry",
candidate: "male"
},
{
client: "Dorry",
candidate: "female"
}
];
var i = 0;
function nextItem() {
i = i + 1;
i = i % testimonials.length;
return testimonials[i].candidate;
}
function prevItem() {
if (i === 0) {
i = testimonials.length;
}
i = i - 1;
return testimonials[i].client;
}
window.addEventListener('load', function() {
$('.client-box').html(testimonials[i].client);
$('.candidate-box').html(testimonials[i].candidate);
$('.left-btn').on('click', function(e) {
$('.client-box').html(prevItem());
$('.candidate-box').html(prevItem());
});
$('.right-btn').on('click', function(e) {
$('.client-box').html(nextItem());
$('.candidate-box').html(nextItem());
});
});
答案 0 :(得分:0)
修正代码:
let testimonials = [{
client: "Raphel",
candidate: "male"
},
{
client: "Tom",
candidate: "male"
},
{
client: "Jerry",
candidate: "male"
},
{
client: "Dorry",
candidate: "female"
}
];
var i = 0;
function nextItem() {
i = i + 1;
i = i % testimonials.length;
return testimonials[i];
}
function prevItem() {
if (i === 0) {
i = testimonials.length;
}
i = i - 1;
return testimonials[i];
}
window.addEventListener('load', function() {
$('.client-box').html(testimonials[i].client);
$('.candidate-box').html(testimonials[i].candidate);
$('.left-btn').on('click', function(e) {
var prev = prevItem();
$('.client-box').html(prev.client);
$('.candidate-box').html(prev.candidate);
});
$('.right-btn').on('click', function(e) {
var next = nextItem();
$('.client-box').html(next.client);
$('.candidate-box').html(next.candidate);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="client-box"></div>
<div class="candidate-box"></div>
<input type="button" class="left-btn" value="Prev" />
<input type="button" class="right-btn" value="Next" />
答案 1 :(得分:0)
要获得预期结果,请使用以下选项
问题:在单击左键和右键时会调用PrevItem和nextItem方法两次,从而产生不一致的轮播
代码示例
let testimonials = [
{client: "Raphel", candidate: "male"},
{client: "Tom", candidate: "male"},
{client: "Jerry", candidate: "male"},
{client: "Dorry", candidate: "female"}
];
var i = 0;
$('.client-box').text(testimonials[0].client);
$('.candidate-box').text(testimonials[1].candidate);
function nextItem() {
i = i + 1;
if (i === testimonials.length) {
i = i % testimonials.length;
}
return testimonials[i];
}
function prevItem() {
if (i === 0) {
i = testimonials.length;
}
i = i - 1;
console.log("prev", i)
return testimonials[i];
}
$('.left-btn').on('click', function(e){
let val = prevItem()
$('.client-box').text(val.client);
$('.candidate-box').text(val.candidate);
});
$('.right-btn').on('click', function(e){
let val = nextItem()
$('.client-box').text(val.client);
$('.candidate-box').text(val.candidate);
});
.testimonial-carousel {
position: relative;
width: 1000px;
}
.testimonial-carousel::after {
content: "";
display: block;
clear: both;
}
.testimonial-carousel .testimonial-box {
width: 500px;
height: 100px;
float: left;
background: #999999;
}
.testimonial-carousel .testimonial-box.candidate-box {
background: white;
margin-top: 2rem;
box-shadow: 0 0 1rem rgba(0, 0, 0, 0.2);
}
.testimonial-carousel .buttons {
position: absolute;
bottom: -60px;
right: 20px;
}
.testimonial-carousel .buttons::after {
content: "";
display: block;
clear: both;
}
.testimonial-carousel .buttons .btn {
background: black;
width: 60px;
height: 60px;
float: left;
margin-right: 5px;
display: block;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="testimonial-carousel">
<div class="testimonial-box client-box"></div>
<div class="testimonial-box candidate-box"></div>
<div class="buttons">
<a href="#" class="btn left-btn">LEFT</a>
<a href="#" class="btn right-btn">RIGHT</a>
</div>
</div>