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如何在滾動元素中添加類React js,我想在滾動中添加類並在頁面頂部移除該類。如何在滾動元素上添加類React js
import React from "react"
import { Link } from "react-router"
import { prefixLink } from "gatsby-helpers"
import Helmet from "react-helmet"
import { config } from "config"
module.exports = React.createClass({
propTypes() {
return {
children: React.PropTypes.any,
}
},
render() {
window.addEventListener('scroll', (event) => {
});
return (
<div>
<header className="header">
<div className="top-bar">
<span><a href="tel:6788272782">678-827-2782 </a></span>
<span><a href="mailto:[email protected]"> [email protected]</a></span>
<button>Login</button>
</div>
</header>
{this.props.children}
</div>
)
},
})
謝謝@Chase DeAnda – harry