Remove query strings from static WordPress resources

functions.php

//Remove query strings
function _remove_query_strings( $src ){
	$rqs = explode( '?ver', $src );
	return $rqs[0];
}
if ( is_admin() ) {
// Remove query strings from static resources disabled in admin
}

else {
	add_filter( 'script_loader_src', '_remove_query_strings', 15, 1 );
	add_filter( 'style_loader_src', '_remove_query_strings', 15, 1 );
}