WordPress JS enqueue

functions.php

add_action( 'wp_enqueue_scripts', 'mondira_slider_options' );
function mondira_slider_options(){
    wp_enqueue_script( 'theme-slider', get_template_directory_uri() . '/js/theme-slider.js', array( 'jquery' ) );
    wp_enqueue_script( 'theme-slider-init', get_template_directory_uri() . '/js/init.js', array( 'jquery', 'theme-slider' ) );
    
    // get user options
    $options = array();
    $options['autoplay'] = get_theme_mod( 'slider-autoplay', true );
    $options['navigation_style'] = get_theme_mod( 'numbers', 'circles' );
    
    wp_localize_script( 'theme-slide-init', 'themeSliderOptions', $options );
}

init.js

jQuery( document ).ready( function( $ ){
    $( '.slider' ).fancySlider({
        'autoplay': themeSliderOptions.autoplay,
        'navStyle': themeSliderOptions.navigation_style,
        });
});