如何开始我的进度条计数时,我会去我的网页容器部分。我想我必须改变我的javascript代码有点请帮助我。
HTML代码
<div class="container">
<div class="circular-progress">
<span class="progress-value">100%</span>
</div>
<span class="text">HTML & CSS</span>
</div>
<!-- JavaScript -->
<script src="js/script.js"></script>
CSS代码
/* Google Fonts - Poppins */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
*{
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Poppins', sans-serif;
}
body{
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
background: #7d2ae8;
}
.container{
display: flex;
width: 420px;
padding: 50px 0;
border-radius: 8px;
background: #fff;
row-gap: 30px;
flex-direction: column;
align-items: center;
}
.circular-progress{
position: relative;
height: 250px;
width: 250px;
border-radius: 50%;
background: conic-gradient(#7d2ae8 3.6deg, #ededed 0deg);
display: flex;
align-items: center;
justify-content: center;
}
.circular-progress::before{
content: "";
position: absolute;
height: 210px;
width: 210px;
border-radius: 50%;
background-color: #fff;
}
.progress-value{
position: relative;
font-size: 40px;
font-weight: 600;
color: #7d2ae8;
}
.text{
font-size: 30px;
font-weight: 500;
color: #606060;
}
Javascript程式码
let circularProgress = document.querySelector(".circular-progress"),
progressValue = document.querySelector(".progress-value");
let progressStartValue = 0,
progressEndValue = 90,
speed = 100;
let progress = setInterval(() => {
progressStartValue++;
progressValue.textContent = `${progressStartValue}%`
circularProgress.style.background = `conic-gradient(#7d2ae8 ${progressStartValue * 3.6}deg, #ededed 0deg)`
if(progressStartValue == progressEndValue){
clearInterval(progress);
}
}, speed);
当我加载我的网页在第一次然后progressbar是计数值,但我想开始计数后,我去该网页的该部分。
1条答案
按热度按时间erhoui1w1#
你可以使用Intersection Observer。你选择一个HTML元素来观察,一旦这个元素出现在视图中,就会触发进度条的启动。