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Description

Checks whether separate styles should be loaded for core blocks on-render.

When this function returns true, other functions ensure that core blocks only load their assets on-render, and each block loads its own, individual assets. Third-party blocks only load their assets when rendered. When this function returns false, all core block assets are loaded regardless of whether they are rendered in a page or not, because they are all part of the block-library/style.css file. Assets for third-party blocks are always enqueued regardless of whether they are rendered or not. This only affects front end and not the block editor screens.

Usage

$bool = wp_should_load_separate_core_block_assets();

Parameters

Returns

bool Whether separate assets will be loaded.

Source

File name: wordpress/wp-includes/script-loader.php
Lines:

function wp_should_load_separate_core_block_assets() {
  if ( is_admin() || is_feed() || ( defined( 'REST_REQUEST' ) && REST_REQUEST ) ) {
    return false;
  }

  
/**
 * Filters whether block styles should be loaded separately.
 *
 * Returning false loads all core block assets, regardless of whether they are rendered
 * in a page or not. Returning true loads core block assets only when they are rendered.
 *
 * @since 5.8.0
 *
 * @param bool $load_separate_assets Whether separate assets will be loaded.
 *                                   Default false (all block assets are loaded, even when not used).
 */
  return apply_filters( 'should_load_separate_core_block_assets', false );
}
 

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