Last active
May 25, 2022 19:16
-
-
Save enqtran/25c6b222a73dc497cc3a64c090fb6700 to your computer and use it in GitHub Desktop.
[ReactJS] Detect Scrolls To Bottom
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
constructor(props) { | |
super(props); | |
this.state = { | |
height: window.innerHeight, | |
message: 'not at bottom' | |
}; | |
this.handleScroll = this.handleScroll.bind(this); | |
} | |
handleScroll() { | |
const windowHeight = "innerHeight" in window ? window.innerHeight : document.documentElement.offsetHeight; | |
const body = document.body; | |
const html = document.documentElement; | |
const docHeight = Math.max(body.scrollHeight, body.offsetHeight, html.clientHeight, html.scrollHeight, html.offsetHeight); | |
const windowBottom = windowHeight + window.pageYOffset; | |
if (windowBottom >= docHeight) { | |
this.setState({ | |
message: 'bottom reached' | |
}); | |
} else { | |
this.setState({ | |
message: 'not at bottom' | |
}); | |
} | |
} | |
componentDidMount() { | |
window.addEventListener("scroll", this.handleScroll); | |
} | |
componentWillUnmount() { | |
window.removeEventListener("scroll", this.handleScroll); | |
} |
Thank you for this!
Thanks
love it
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Sometimes loadmore doesn't need to touch bottom :D
if (windowBottom >= (docHeight * 0.8)) { }