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- Tags: JS DOM, JS DOM Element
- Categories: JavaScript Properties, JavaScript Reference, Reference
Last Updated on November 15, 2022
Quick Reference
The Element scrollTop property sets or returns the number of pixels an element’s content is scrolled vertically.
<!-- html element to place output -->
<p id="my_output"></p>
Get the Scroll
// variables
let my_element = document.getElementById('my_output');
let x = my_element.scrollTop;
// output to the HTML element
document.getElementById('my_output').innerHTML = x.toFixed();
Set the Scroll
// variable
let my_element = document.getElementById('my_output');
// scroll
my_element.scrollTop = 50;
Output
Get the Scroll
(on vertical scroll will output the number of pixels scrolled)
Set the Scroll
(will scroll down 50px)
Syntax
Get the Scroll
element.scrollTop
Set the Scroll
element.scrollTop = pixels
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.
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JAVASCRIPT NOTES:
- When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- JavaScript is a case-sensitive language; firstName is NOT the same as firstname
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
- JavaScript variables must begin with a letter, $, or _
- JavaScript variables are case sensitive (x is not the same as X)
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