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JavaScript

Scroll effect jQuery.

Hello,

I recently created an effect for my navigation in jQuery (see below). It was able to successfully change the colour of its background, once it had reached a position of 300 pixels.

My question is, how can I improve this code? I am new to jQuery and hope that their is a more efficient way of writing what I did.

$(document).scroll(function(){
 var nav = $("nav");
 var a = $("nav a");
 var position = nav.offset().top;
 console.log(position);
 if(position > 300) {
  nav.css('background-color', 'rgba(0,0,0,0.85)');
  a.css('color', '#fff');
 } else if (position < 300 ) {
  nav.css('background-color', '#ecf0f1');
  a.css('color', '#000');
 }
});

Thanks!!

only thing you can do with this according to my knowledge creating variable like this

$(document).scroll(function(){
         var nav = $("nav"),
                 a = $("nav a"),
                position = nav.offset().top;

but if you want to make you code easy to understand you can create function