问题描述
我找到了this个,它使用了anime.js
和jQuery
。
这是我的 About.js:
import React from 'react';
import '../css/About.css'
import '../scripts/aboutAnimation'
import AboutInfo from "../components/AboutInfo";
const About = () => {
return (
<div className="containerAbout">
<div className="title-container">
<p className="title">About us...</p>
</div>
<div className="forest">
<AboutInfo
name="Vasiliy Pupkin"
number="+375 29 973 79 43"
email="[email protected]"
position="top"
/>
<AboutInfo
name="Aleksey Smirnov"
number="+375 29 337 91 07"
email="[email protected]"
position="middle"
/>
<AboutInfo
name="Ivan Karpovski"
number="+375 29 655 74 25"
email="[email protected]"
position="down"
/>
</div>
</div>
);
}
export default About;
这是我的 aboutAnimation.js:
import anime from 'animejs/lib/anime.es.js';
let textwrapper = document.getElementsByClassName('title');
textwrapper.innerHTML = textwrapper.textContent.replace(/\S/g,"<span class='letter'>$&</span>");
anime.timeline({loop: true})
.add({
targets: '.title .letter',translateX: [40,0],translateZ: 0,opacity: [0,1],easing: "eaSEOutExpo",duration: 1200,delay: (el,i) => 500 + 30 * i
}).add({
targets: '.title .letter',translateX: [0,-30],opacity: [1,easing: "easeInExpo",duration: 1100,i) => 100 + 30 * i
});
这是我得到的错误:
TypeError: Cannot read property 'replace' of undefined
我已经删除了第五行,并通过textwrapper
命令检查了console.log()
是否存在,并且控制台显示了这样的内容:
顺便说一句:如果我在Chrome控制台中输入这两行,我会得到:
解决方法
您应该使用
let textWrapper = document.getElementsByClassName('title')[0];
textWrapper.innerHTML = textWrapper.textContent.replace(/\S/g,"<span class='letter'>$&</span>");
因为getElementsByClassName返回具有所有给定类名的所有子元素的类似数组的对象。
尝试为p标签分配一些ID,然后尝试使用getElementById
let textWrapper = document.getElementById('title');
textWrapper.innerHTML = textWrapper.textContent.replace(/\S/g,"<span class='letter'>$&</span>");
Am添加新的功能组件解决方案!我认为这可能对您有帮助。
import React from 'react';
import '../css/About.css';
import AboutInfo from "../components/AboutInfo";
// THE PACKAGE I HAVE USED
import anime from 'animejs';
export default function App() {
const animationRef = React.useRef(null);
React.useEffect(() => {
let textWrapper = document.getElementsByClassName('title');
textWrapper[0].innerHTML = textWrapper[0].textContent.replace(/\S/g,"<span className='letter'>$&</span>");
animationRef.current =
anime.timeline({ loop: true })
.add({
targets: document.querySelectorAll('.title,.letter'),translateX: [40,0],translateZ: 0,opacity: [0,1],easing: "easeOutExpo",duration: 1200,delay: (el,i) => 500 + 30 * i
}).add({
targets: document.querySelectorAll('.title,translateX: [0,-30],opacity: [1,easing: "easeInExpo",duration: 1100,i) => 100 + 30 * i
});
},[]);
return (
<div className="containerAbout">
<div className="title-container">
<p className="title">About us...</p>
</div>
<div className="forest">
<AboutInfo
name="Vasiliy Pupkin"
number="+375 29 973 79 43"
email="[email protected]"
position="top"
/>
<AboutInfo
name="Aleksey Smirnov"
number="+375 29 337 91 07"
email="[email protected]"
position="middle"
/>
<AboutInfo
name="Ivan Karpovski"
number="+375 29 655 74 25"
email="[email protected]"
position="down"
/>
</div>
</div>
);
}