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Wix Tutorial - Add Up Numbers with Wix Code Calculations

To configure a customized shopping cart, you have to calculate the total price of all products by adding up the subtotal prices of the products.

Elements:

User Input:

Quantity For Product 1: #quantity1 | Add onChange event in the Properties Panel
Quantity For Product 2: #quantity2 | Add onChange event in the Properties Panel

Text Elements:

Unit Price For Product 1: #UnitPrice1
Unit Price For Product 2: #UnitPrice2
Final Price For Product 1: #SubtotalPrice1
Final Price For Product 2: #SubtotalPrice2
Total Price: #TotalPrice

Wix Code:

export function quantity1_change(event, $w) {
let price = Number($w('#UnitPrice1').text);
let selectedQuantity = Number(event.target.value);
$w('#SubtotalPrice1').text = String(selectedQuantity * price);
$w('#TotalPrice').text = String(Number($w('#SubtotalPrice1').text) + Number($w('#SubtotalPrice2').text));
}

export function quantity2_change(event, $w) {
let price = Number($w('#UnitPrice2').text);
let selectedQuantity = Number(event.target.value);
$w('#SubtotalPrice2').text = String(selectedQuantity * price);
$w('#TotalPrice').text = String(Number($w('#SubtotalPrice1').text) + Number($w('#SubtotalPrice2').text));
}