Qrzysio Qrzysio - 1 year ago 400
jQuery Question

TypeError: $(...).parents(...).size is not a function

I have a basic script which allows me to click on the website's background, excluding


After upgrading jQuery to 3.1.0 version, I get this error:
TypeError: $(...).parents(...).size is not a function

<script type="text/javascript">
$(function() {
$("#background").click(function(e) {
if (e.target.id == "wrapper" || $(e.target).parents("#wrapper").size())
// do nothing

I don't know how to fix it. jQuery is loaded properly. Please help.

Answer Source

size() was deprecated years ago and removed in version 3 ... use length instead

if (e.target.id == "wrapper" || $(e.target).parents("#wrapper").length)

All you had to do was look this up in the size() docs to find this out

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