이미지 슬라이드 - 무한, 버튼 추가, 닷 추가
<main>
<section id="sliderType01">
<div class="slider__wrap">
<div class="slider__img">
<div class="slider__inner">
<div class="slider"><img src="img/image16.jpg" alt="이미지1"></div>
<div class="slider"><img src="img/image17.jpg" alt="이미지2"></div>
<div class="slider"><img src="img/image18.jpg" alt="이미지3"></div>
<div class="slider"><img src="img/image19.jpg" alt="이미지4"></div>
<div class="slider"><img src="img/image20.jpg" alt="이미지5"></div>
</div>
</div>
<div class="slider__btn">
<a href="#" class="prev">prev</a>
<a href="#" class="next">next</a>
</div>
<div class="slider__dot">
<!-- <a href="#" class="dot active"></a>
<a href="#" class="dot"></a>
<a href="#" class="dot"></a>
<a href="#" class="dot"></a>
<a href="#" class="dot"></a> -->
</div>
</div>
</section>
</main>
.slider__wrap {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
.slider__img { /*화면보이는 구간*/
width: 800px;
height: 480px;
overflow: hidden;
}
.slider__inner { /*이미지 움직이는 영역*/
display: flex;
flex-wrap: wrap;
width: 4800px; /*이미지 총 길이*/
transform: translateX(0);
}
.slider {
width: 800px;
position: relative;
}
.slider::before {
position: absolute;
left: 5px;
top: 5px;
background: rgba(0,0,0,0.4);
color: #fff;
padding: 5px 10px 3px;
}
.slider:nth-child(1):before {
content: '이미지1';
}
.slider:nth-child(2):before {
content: '이미지2';
}
.slider:nth-child(3):before {
content: '이미지3';
}
.slider:nth-child(4):before {
content: '이미지4';
}
.slider:nth-child(5):before {
content: '이미지5';
}
.slider__btn a {
position: absolute;
top: 50%;
transform: translateY(-50%);
z-index: 100;
width: 50px;
height: 50px;
background: rgba(0,0,0,0.4);
line-height: 50px;
transition: all 0.2s;
display: block;
color: #fff;
text-decoration: none;
}
.slider__btn a.prev {
left: 0;
}
.slider__btn a.next {
right: 0;
}
.slider__btn a:hover {
background: rgb(241,96,86);
}
.slider__dot {
position: absolute;
left: 50%;
transform: translateX(-50%);
bottom: 20px;
}
.slider__dot .dot {
width: 20px;
height: 20px;
background: rgba(0,0,0,0.4);
display: inline-block;
border-radius: 50%;
transition: all 0.3s;
margin: 3px;
}
.slider__dot .dot.active {
background: rgba(255,255,255,0.9);
}
const sliderWrap = document.querySelector(".slider__wrap");
const sliderImg = document.querySelector(".slider__img");
const sliderInner = document.querySelector(".slider__inner");
const slider = document.querySelectorAll(".slider");
const sliderBtn = document.querySelector(".slider__btn");
const sliderDot = document.querySelector(".slider__dot");
let currentIndex = 0;
let sliderCount = slider.length;
let sliderWidth = sliderImg.offsetWidth;
let dotIndex = "";
let dotActive;
function init(){
slider.forEach(() => {
dotIndex += "<a href='#'' class='dot'></a>";
});
sliderDot.innerHTML = dotIndex;
sliderDot.firstElementChild.classList.add("active");
}
init();
function gotoSlider(num){
sliderInner.style.transition = "all 600ms";
sliderInner.style.transform = "translateX("+ -sliderWidth * num +"px)";
currentIndex = num;
dotActive = document.querySelectorAll(".slider__dot .dot");
dotActive.forEach((el)=>{
el.classList.remove("active");
});
dotActive[num].classList.add("active");
}
document.querySelectorAll(".slider__dot .dot").forEach((dot, index)=>{
dot.addEventListener("click", ()=>{
gotoSlider(index);
});
});
document.querySelectorAll(".slider__btn a").forEach((btn, index)=>{
btn.addEventListener("click", ()=>{
let prevIndex = (currentIndex +(sliderCount-1)) % sliderCount;
let nextIndex = (currentIndex + 1) % sliderCount;
if(btn.classList.contains("prev")){
gotoSlider(prevIndex);
} else {
gotoSlider(nextIndex);
}
});
});