archive.php

<?php

/**
 * Enqueue Scripts
 * 
 */
function be_enqueue_blog_scripts() {
	wp_enqueue_script( 'be-blog' );
}
add_action( 'wp_enqueue_scripts', 'be_enqueue_blog_scripts', 20 );

blog.js

jQuery(function($){

	// Isotope on load
	var $container = $('.content').imagesLoaded( function(){
		$container.isotope({
			itemSelector: '.entry',
			layout: 'masonry',
		});
	});
	
	// Infinite scroll
	$container.infinitescroll({
           navSelector: '.archive-pagination', // selector for the paged navigation
           nextSelector: '.pagination-next a', // selector for the NEXT link (to page 2)
           itemSelector: '.entry', // selector for all items you'll retrieve
           loading: {
               finishedMsg: 'No more posts to load.',
               img: ''
           }
       },

       // call Isotope as a callback
       function(newElements) {
           var $newElems = jQuery(newElements);
           $newElems.imagesLoaded(function() {
               $container.isotope('appended', $newElems);
           });
       }
   );
});

functions.php

<?php

/**
 * Register Scripts
 * 
 */
function be_register_scripts() {
	
	wp_register_script( 'isotope', get_stylesheet_directory_uri() . '/js/isotope.pkdg.min.js', array( 'jquery' ), '2.0.1', true );
	wp_register_script( 'imagesloaded', get_stylesheet_directory_uri() . '/js/imagesloaded.pkdg.min.js', array( 'jquery' ), '3.1.8', true );
	wp_register_script( 'infinitescroll', get_stylesheet_directory_uri() . '/js/infinitescroll.pkdg.min.js', array( 'jquery' ), '2.0.2', true );
	wp_register_script( 'be-blog', get_stylesheet_directory_uri() . '/js/blog.js', array( 'jquery', 'infinitescroll', 'imagesloaded', 'isotope' ), '1.0', true );
	
}
add_action( 'wp_enqueue_scripts', 'be_register_scripts' );