We can get customer data by injecting “Magento_Customer/js/customer-data” using require function in our custom js/javascript component in Magento 2.

You can use the JQuery library in Magento 2 by adding code inside require function and you can also access it in the console by $ sign.

In Magento 2, we can use ifconfig in layout XML for the block to display or not based on the Magento / Config / Model / Config / Source / Yesno configuration…