如何在wordpress中异步排队jQuery？

Question

My theme uses the bundled jQuery of Wordpress and I want to load it asynchronously. (Yeah, PageSpeed Insights...)

Answer 1

There is a hook for this script_loader_tag. You can use it as below

add_filter( 'script_loader_tag', 'add_asyn_to_script', 10, 3 );

function add_asyn_to_script( $tag, $handle, $src ) {

    //you can use this to make all async
    $tag = str_replace( ' src', ' async src', $tag );

    // You can use this to make it work as below for a specific script
    if ( 'dropbox.js' === $handle ) 
        $tag = '<script async type="text/javascript" src="' . esc_url( $src ) . '"></script>';
    }

    return $tag;
}