WooCommerce - Change add-to-cart text

<?php
  // WooCommerce - Change add-to-cart text
  add_filter( 'woocommerce_product_add_to_cart_text' , 'custom_add_to_cart_text' );
  function custom_add_to_cart_text( $default ) {
    if( 'Read more' == $default ) {
      $default = 'View';
    }
    return $default;
  }