https://docguidance.com/wp-content/themes/rehub-theme/js/quantity.js?ver=19.9.5

1jQuery(document).ready(function($) {
2   'use strict';     
3        // Woocommerce Cart Quantity
4        if ( ! String.prototype.rhgetDecimalNumber ) {
5            String.prototype.rhgetDecimalNumber = function () {
6                var num = this,
7                    match = ('' + num).match(/(?:\.(\d+))?(?:[eE]([+-]?\d+))?$/);
8                if ( ! match ) {
9                    return 0;
10                }
11
12                return Math.max( 0, ( match[1] ? match[1].length : 0 ) - ( match[2] ? + match[2] : 0 ) );
13            }
14        }
15
16        $(document).on('click', '.rh-custom-quantity .plus-quantity, .rh-custom-quantity .minus-quantity', function () {
17            // Get values
18            var $qty = $(this).closest('.quantity').find('.qty'),
19                currentVal = parseFloat( $qty.val() ),
20                max = parseFloat($qty.attr('max')),
21                min = parseFloat($qty.attr('min')),
22                step = $qty.attr('step');
23
24            // Format values
25            if ( ! currentVal || currentVal === '' || currentVal === 'NaN' ) {
26                currentVal = 0;
27            }
28
29            if ( max === '' || max === 'NaN' ) {
30                max = '';
31            }
32
33            if ( min === '' || min === 'NaN' ) {
34                min = 0;
35            }
36
37            if ( step === 'any' || step === '' || step === undefined || parseFloat(step) === 'NaN' ) {
38                step = '1';
39            }
40
41            if ( $(this).is('.plus-quantity') ) {
42                if ( max && ( currentVal >= max ) ) {
43                    $qty.val(max);
44                } else {
45                    $qty.val( ( currentVal + parseFloat( step ) ).toFixed( step.rhgetDecimalNumber() ) );
46                }
47            } else {
48                if ( min && ( currentVal <= min ) ) {
49                    $qty.val(min);
50                } else if ( currentVal > 0 ) {
51                    $qty.val( ( currentVal - parseFloat( step ) ).toFixed( step.rhgetDecimalNumber() ) );
52                }
53            }
54
55            $(this).closest('.rh-loop-quantity').find('.ajax_add_to_cart').attr('data-quantity', parseInt($(this).closest('.rh-loop-quantity').find('.qty').val()));
56
57            $qty.trigger('change');
58        });
59
60        var Carttimeout;
61        $(document).on('change input', '.woocommerce-mini-cart .rh-custom-quantity .qty', function() {
62            if ( typeof wc_cart_fragments_params === 'undefined' ) {
63                return false;
64            }
65
66            var productQty = $(this).val();
67            var productID = $(this).parents('.woocommerce-mini-cart-item').prop('class').match(/cartkey-([a-z0-9]+)/)[1];;
68            var cart_hash_key = wc_cart_fragments_params.cart_hash_key;
69            var fragment_name = wc_cart_fragments_params.fragment_name;
70
71            console.log(productID);
72
73            clearTimeout(Carttimeout);
74
75            Carttimeout = setTimeout( function () {
76
77                $.ajax({

78                    url: rhscriptvars.ajax_url,
79                    data: {
80                        action: 'rh_update_sidebar_cart_item',
81                        item_id: productID,
82                        qty: productQty
83                    },
84                    success: function (data) {
85                        if ( data && data.fragments ) {
86                            $.each( data.fragments, function( key, value ) {
87                                if ($(key).hasClass('widget_shopping_cart_content')) {
88                                    var dataNewValue = $(value).find('.woocommerce-mini-cart-item.cartkey-' + productID + '');
89                                    var FooterValue = $(value).find('.woocommerce-mini-cart__total')
90                                    var $selector = $( key ).find('.woocommerce-mini-cart-item.cartkey-' + productID + '');
91
92                                    if ( ! data.cart_hash ) {
93                                        $( key ).replaceWith( value );
94                                    } else {
95                                        $selector.replaceWith(dataNewValue);
96                                        $('.woocommerce-mini-cart__total').replaceWith( FooterValue );
97                                    }
98                                } else {
99                                    $( key ).replaceWith( value );
100                                }
101                            });
102
103                            sessionStorage.setItem( fragment_name, JSON.stringify( data.fragments ) );
104                            localStorage.setItem( cart_hash_key, data.cart_hash );
105                            sessionStorage.setItem( cart_hash_key, data.cart_hash );
106
107                            if ( data.cart_hash ) {
108                                sessionStorage.setItem( 'wc_cart_created', ( new Date() ).getTime() );
109                            }
110                        }
111                    },
112                    dataType: 'json',
113                    method: 'GET',
114                });
115            }, 500 );
116        });
117
118        if ( $('.rh-loop-quantity form.cart').length ) {
119            $('.rh-loop-quantity .qty').on('input', function() {
120                $(this).closest('.rh-loop-quantity').find('.ajax_add_to_cart').attr('data-quantity', $(this).val());
121            });
122        }  
123});