jet-elements-posts-format-number.php

<?php

add_action(
	'elementor/element/jet-posts/section_posts_custom_fields/before_section_end',
	'jet_custom_meta_callbacks'
);

add_action(
	'elementor/element/jet-blog-smart-tiles/section_custom_fields/before_section_end',
	'jet_custom_meta_callbacks'
);

add_action(
	'elementor/element/jet-blog-smart-listing/section_custom_fields/before_section_end',
	'jet_custom_meta_callbacks'
);

function jet_custom_meta_callbacks( $controls_stack ) {
	foreach ( array( 'content_related_meta', 'title_related_meta' ) as $control_id ) {
		$control = $controls_stack->get_controls( $control_id );
		$fields  = $control['fields'];
		$fields[3]['options'] = array_merge(
			$fields[3]['options'],
			array(
				'jet_custom_number_format' => 'jet_custom_number_format',
				'jet_custom_trim_chars'    => 'jet_custom_trim_chars',
			)
		);
		$controls_stack->update_control( $control_id, array( 'fields' => $fields ) );
	}
}

function jet_custom_number_format( $number ) {
	return number_format( $number, 0, '.', ' ' );
}

function jet_custom_trim_chars( $desc ) {
	return mb_strimwidth( $desc, 0, 20, '...' );
}