javascript - Check height, then add or remove class -


i'm making navigation responsive. when width above number should class, when it's below, class should removed:

var width = $("#primary-header-nav").width(); if ( width < 770) {   $('#primary-header-nav li a').addclass('box-1-9');     } else {   $('#primary-header-nav li a').removeclass('box-1-9');  }

however, in reality, class never assigned. regardless of width.

this site if of help: http://darylkeep.com/aanbod/

try this.

$(document).ready(function(){   $(function(){     $(window).on("resize", function(){        var width = $(this).width();       var links = $('#primary-header-nav li a');        if(width < 770){         links.addclass('box-1-9');       }else{         links.removeclass('box-1-9');       }     });   }); });

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