问题
I’d like to make the browser to scroll the page to a given anchor, just by using JavaScript.
I have specified a name or id attribute in my HTML code:
<a name=\"anchorName\">..</a>
or
<h1 id=\"anchorName2\">..</h1>
I’d like to get the same effect as you’d get by navigating to http://server.com/path#anchorName. The page should be scrolled so that the anchor is near the top of the visible part of the page.
回答1:
function scrollTo(hash) {
location.hash = "#" + hash;
}
No jQuery required at all!
回答2:
Way simpler:
var element_to_scroll_to = document.getElementById('anchorName2');
// Or:
var element_to_scroll_to = document.querySelectorAll('.my-element-class')[0];
// Or:
var element_to_scroll_to = $('.my-element-class')[0];
// Basically `element_to_scroll_to` just have to be a reference
// to any DOM element present on the page
// Then:
element_to_scroll_to.scrollIntoView();
回答3:
You can use jQuerys .animate(), .offset() and scrollTop. Like
$(document.body).animate({
'scrollTop': $('#anchorName2').offset().top
}, 2000);
example link: http://jsbin.com/unasi3/edit
If you don't want to animate use .scrollTop() like
$(document.body).scrollTop($('#anchorName2').offset().top);
or javascripts native location.hash like
location.hash = '#' + anchorid;
回答4:
Great solution by jAndy, but the smooth scroll seems to be having issues working in firefox.
Writing it this way works in Firefox as well.
(function($) {
$(document).ready(function() {
$('html, body').animate({
'scrollTop': $('#anchorName2').offset().top
}, 2000);
});
})(jQuery);
回答5:
A pure javascript solution without JQuery. Tested on Chrome & I.e, not tested on IOS
function ScrollTo(name) {
ScrollToResolver(document.getElementById(name));
}
function ScrollToResolver(elem) {
var jump = parseInt(elem.getBoundingClientRect().top * .2);
document.body.scrollTop += jump;
document.documentElement.scrollTop += jump;
if (!elem.lastjump || elem.lastjump > Math.abs(jump)) {
elem.lastjump = Math.abs(jump);
setTimeout(function() { ScrollToResolver(elem);}, "100");
} else {
elem.lastjump = null;
}
}
demo: https://jsfiddle.net/jd7q25hg/12/
回答6:
2018-2019 Pure js:
There is a very convenient way to scroll to the element:
el.scrollIntoView({
behavior: 'smooth', // smooth scroll
block: 'start' // the upper border of the element will be aligned at the top of the visible part of the window of the scrollable area.
})
But as far as I understand he does not have such good support as the options below.
Learn more about the method.
If it is necessary that the element is in the top:
const element = document.querySelector('#element')
const top = element.getBoundingClientRect().top + window.pageYOffset
window.scrollTo({
top, // scroll so that the element is at the top of the view
behavior: 'smooth' // smooth scroll
})
Demonstration example on Codepen
If you want the element to be in the center:
const element = document.querySelector('#element')
const rect = element.getBoundingClientRect() // get rects(width, height, top, etc)
const viewHeight = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
window.scroll({
top: rect.top + rect.height / 2 - viewHeight / 2,
behavior: 'smooth' // smooth scroll
});
Demonstration example on Codepen
Support:
They write that scroll is the same method as scrollTo, but support shows better in scrollTo.
More about the method
回答7:
In 2018, you don't need jQuery for something simple like this. The built in [scrollIntoView()][1] method supports a "behavior" property to smoothly scroll to any element on the page. You can even update the browser URL with a hash to make it bookmarkable.
From this tutorial on scrolling HTML Bookmarks, here is a native way to add smooth scrolling to all anchor links on your page automatically:
let anchorlinks = document.querySelectorAll('a[href^="#"]')
for (let item of anchorlinks) { // relitere
item.addEventListener('click', (e)=> {
let hashval = item.getAttribute('href')
let target = document.querySelector(hashval)
target.scrollIntoView({
behavior: 'smooth',
block: 'start'
})
history.pushState(null, null, hashval)
e.preventDefault()
})
}
回答8:
Smoothly scroll to the proper position (2019)
Get correct y coordinate and use window.scrollTo({top: y, behavior: 'smooth'})
const id = 'anchorName2';
const yourElement = document.getElementById(id);
const y = yourElement.getBoundingClientRect().top + window.pageYOffset;
window.scrollTo({top: y, behavior: 'smooth'});
With offset
scrollIntoView is a good option too but it may not works perfectly in some cases. For example when you need additional offset. With scrollTo you just need to add that offset like this:
const yOffset = -10;
window.scrollTo({top: y + yOffset, behavior: 'smooth'});
回答9:
$(document).ready ->
$("a[href^='#']").click ->
$(document.body).animate
scrollTop: $($(this).attr("href")).offset().top, 1000
回答10:
The solution from CSS-Tricks no longer works in jQuery 2.2.0. It will throw a selector error:
JavaScript runtime error: Syntax error, unrecognized expression: a[href*=#]:not([href=#])
I fixed it by changing the selector. The full snippet is this:
$(function() {
$("a[href*='#']:not([href='#'])").click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
var target = $(this.hash);
target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
if (target.length) {
$('html,body').animate({
scrollTop: target.offset().top
}, 1000);
return false;
}
}
});
});
回答11:
Most answers are unnecessarily complicated.
If you just want to jump to the target element, you don't need JavaScript:
# the link:
<a href="#target">Click here to jump.</a>
# target element:
<div id="target">Any kind of element.</div>
If you want to scroll to the target animatedly, please refer to @Shahil's answer.
回答12:
This works:
$('.scroll').on("click", function(e) {
e.preventDefault();
var dest = $(this).attr("href");
$("html, body").animate({
'scrollTop': $(dest).offset().top
}, 2000);
});
https://jsfiddle.net/68pnkfgd/
Just add the class 'scroll' to any links you wish to animate
回答13:
This is a working script that will scroll the page to the anchor. To setup just give the anchor link an id that matches the name attribute of the anchor that you want to scroll to.
<script>
jQuery(document).ready(function ($){
$('a').click(function (){
var id = $(this).attr('id');
console.log(id);
if ( id == 'cet' || id == 'protein' ) {
$('html, body').animate({ scrollTop: $('[name="' + id + '"]').offset().top}, 'slow');
}
});
});
</script>
回答14:
I know this is question is really old, but I found an easy and simple jQuery solution in css-tricks. That's the one I'm using now.
$(function() {
$('a[href*=#]:not([href=#])').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
var target = $(this.hash);
target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
if (target.length) {
$('html,body').animate({
scrollTop: target.offset().top
}, 1000);
return false;
}
}
});
});
回答15:
jQuery("a[href^='#']").click(function(){
jQuery('html, body').animate({
scrollTop: jQuery( jQuery(this).attr('href') ).offset().top
}, 1000);
return false;
});回答16:
a vue2 solution ... add simple data property to simply force the update
const app = new Vue({
...
, updated: function() {
this.$nextTick(function() {
var uri = window.location.href
var anchor = ( uri.indexOf('#') === -1 ) ? '' : uri.split('#')[1]
if ( String(anchor).length > 0 && this.updater === 'page_load' ) {
this.updater = "" // only on page-load !
location.href = "#"+String(anchor)
}
})
}
});
app.updater = "page_load"
/* smooth scrolling in css - works in html5 only */
html, body {
scroll-behavior: smooth;
}
来源：https://stackoverflow.com/questions/3163615/how-to-scroll-html-page-to-given-anchor