Can you add a JS library to Magento 2?

Can you add a JS library to Magento 2?

To add a JS library in Magento 2 is quite different from what we are used to doing in Magento 1. Magento 2 uses RequireJs library for nearly every JavaScript feature it has. Among other benefits, it improves the page loads by loading JS files asynchronously and only loading JS files the page needed.

What is the function of a section in Magento?

A section is a piece of customer data grouped together. Each section is represented by key that is used to access and manage data and data itself. Magento loads sections by AJAX request to /customer/section/load/ and caches loaded data in the browser local storage under the key mage-cache-storage.

How does ajaxcomplete and submit work in Magento?

At the end of last one of the two events handlers are registered for ajaxComplete and submit. That means that when any form is posted (with POST or PUT methods) to server, or when JavaScript sends an AJAX, POST or PUT request, the handlers will be invoked.

How do customer sections / sections.xml work?

That means that when any form is posted (with POST or PUT methods) to server, or when JavaScript sends an AJAX, POST or PUT request, the handlers will be invoked. Both handlers have similar logic: with help of Magento_Customer/js/section-config check should be any section updated or not.

Which is better jQuery or pure JS in Magento?

To simplify the creation of various elements like drop-down lists, accordions, buttons, datepickers, etc., Magento implements jquery and jquery UI libraries. If you compare jquery and pure js, then the jquery code is significantly shorter and simpler, but at the same time has a far larger load on browser performance.

Why do we use jQuery widgets in Magento?

Magento uses jquery UI widgets to save development time, so the most commonly used elements in projects are already available for use with no need for configuration.

Do you need mixins to use Magento 2?

Magento 2 comes with a variety of functional capabilities, and when it comes to redefining the javascript component or extending the javascript component in Magento 2, you need to use mixins. Mixins are JavaScript files located in the web / js directory.

How are the JS components organized in Magento?

This topic describes general concepts of how JavaScript (JS) components are organized in Magento. To address the problem of slow page loads, we exclude JavaScript from the page headers and we added the ability to use the RequireJS library.

How does RequireJS improve page load time in Magento?

RequireJS improves the perceived page load time because it allows JavaScript to load in the background; in particular, it enables asynchronous JavaScript loading. In Magento, you can find Javascript components on the following levels:

Why is JavaScript excluded from page headers in Magento?

To address the problem of slow page loads, we exclude JavaScript from the page headers and we added the ability to use the RequireJS library. RequireJS improves the perceived page load time because it allows JavaScript to load in the background; in particular, it enables asynchronous JavaScript loading.

Is it recommended to use imperative approach in Magento 2?

It is also worth to mention here the so-called imperative approach in connecting JS modules. You can often find it in the Magento 2 code. However, it is recommended in the Magento 2 official documentation not to use it. Here is what the connection looks like:

How to inject JavaScript in data-Magento-init?

If you need to determine the loading order of JS files, you can use the shim option. Now let’s consider injecting dynamic content and executing JavaScript in data-mage-init and x-magento-init. In order to do it, you can just insert the content in DOM and after that trigger the event ‘ contentUpdated ’.