How to negate code in “if” statement block in JavaScript -JQuery like ‘if not then..’

March 29, 2023 by Tarik

You can use the Logical NOT ! operator:

if (!$(this).parent().next().is('ul')){

Or equivalently (see comments below):

if (! ($(this).parent().next().is('ul'))){

For more information, see the Logical Operators section of the MDN docs.