How is the isLoggedIn() method of the «Magento_Customer/js/model/customer» object implemented and used?

Implementation

Usages

1. Magento_Checkout/action/get-payment-information.js

2. Magento_Checkout/action/place-order.js

3. Magento_Checkout/action/set-billing-address

4. Magento_Checkout/action/set-payment-information

5. Magento_Checkout/model/customer-email-validator.js

6. Magento_Checkout/model/resource-url-manager.js

7. Magento_Checkout/view/authentication.js

8. Magento_Checkout/view/billing-address.js

9. Magento_Checkout/view/shipping.js

10. Magento_Checkout/view/form/element/email.js

11. Magento_Checkout/view/view/payment/default.js

The «Magento_Checkout/view/view/payment/default.js» object loads the «Magento_Customer/js/model/customer» object but never uses it.

12. Magento_Paypal/action/set-payment-method.js

See also:

• How to programmatically check on the frontend checkout screen client side (with JavaScript) whether the customer is authenticated (logged in)?
• How to get the customer’s data on the frontend checkout page’s client side (with JavaScript) using the «Magento_Customer/js/model/customer» object?
• The «Magento_Customer/js/model/customer» JavaScript object interface
• How to get the customer’s data on the frontend checkout page’s client side (with JavaScript)?
• frontend-checkout-customer-data - tagged articles.
• The difference between window.customerData, Magento_Customer/js/customer-data, and Magento_Customer/js/model/customer on a frontend checkout page.