Get subtotal, shipping total and Grand total in checkout page using js Magento 2.

You can get total related information in the checkout page with a subtotal, shipping charge, grand total using Javascript.

For getting update grand total with the shipping charge and tax total and other info you need to call ‘Magento_Checkout/js/model/totals’ in the JS file.

You need to call totals Objects with a required field,

You can call above function in template with getGrandTotal(), getShippingAmount() and getSubTotal().