JS) 이미지 자동 슬라이드 코드

HTML)

<div id="slide" class="img-box" val="1" max="3">
        <img id="img1" src="../site_template/home/main1.jpg" alt="">
        <img id="img2" src="../site_template/home/main2.jpg" alt="">
        <img id="img3" src="../site_template/home/main3.jpg" alt="">
        <img id="img1" src="../site_template/home/main1.jpg" alt="">
    </div>

 

JAVASCRIPT)

 const container = document.querySelector('.img-box'),
    slides = document.querySelectorAll('img'),
    slidecounter = slides.length;
let currentIndex = 0;


var lele = 0;
var i = 0;
function moveleft() {
    if (i < slidecounter - 1) {
        lele += 100;
        i++;
        container.style.transition = '.3s'
        setTimeout('moveleft()', 3000);
    } else {
        container.style.transition = '0s'
        lele = 0;
        i = 0;
        setTimeout('moveleft()', 0);
    }

    container.style.left = "-" + lele + "%";
    
}

moveleft();