Referene Class is : {magento root}\vendor\magento\module-catalog-widget\Block\Product\ProductsList.php

Magento 2 – How to identify current page in phtml file?

$currentFullAction = $block->getRequest()->getFullActionName();

$catpages= array('catalog_category_view','catalog_product_view');

if(in_array($currentFullAction, $catpages)){
    //Catalog page
}

Install Magento2.4.x using command line 

You must use the command line to install Magento.

This example assumes that the Magento install directory is named magento2ee, the db-host is on the same machine (localhost), and that the db-name, db-user, and db-password are all magento:

Edit Magento Local Cache Storage Offline (Magento2)

Sometimes we might need to change something in the Local storage of Magento , the local storage is saved in this key ("mage-cache-storage")

I will put now an example to edit the selected shipping address in the checkout shipping section 

Common WordPress Installation Steps

• Install WordPress

• Install the Theme => Create Child theme then activate it

• Protect the website by Basic Authentication while the website under construction

• do all your modification

• you can now change the theme name into any name 'xxx' then modify the child them to put 'xxx' as parent theme

• Install some important plugins

It is very nice to be able to see how we can get the data by the API, in WooCommerce there is a possibility  to do that

first we need 

1. consumer_key
2. consumer_secret

once you get those values you can use this link to get the list of products

https://{www.example.com}/wc-api/v3/products/?consumer_key={consumer_key}&consumer_secret={&consumer_secret}

or you can use the new API 

Magento 2.3 still use "OR" logic for mysql and elasticsearch. Plus "should" conditions (query to ES) are wrong. That's why relevance almost same. But ES significantly improve performance of search and catalog (layered navigation).

you have to set AND operator in your elastic search json queries, Override the module-elasticsearch/SearchAdapter/Query/Builder/Match.php. file in your custom module and then The code you have to edit in the build function in line no 75

Database backup missing table information "inventory_stock_1" 

The CREATE ALGORITHM statement requires elevated MySQL access.
It is likely that the server you are working on does not have this and will halt the import process.

This line needs to come out of the SQL being migrated.

Instead run the following to create the view

in order to get any value per specific scope you can use the below parameters 

First you need to initialize scopeConfig

 * @var \Magento\Framework\App\Config\ScopeConfigInterface
*/
protected $_scopeConfig;

in the constrructer of your class 

Get total weight of the cart in Magento2

in order to get the total weight of the cart you can use two main methods, we will list them here 

First Method 

$weight = {getQuote()}
              ->getShippingAddress()
              ->getWeight();

Second method 

$items = {getQuote()}->getAllItems();

$weight = 0;
foreach($items as $item) {
    $weight += ($item->getWeight() * $item->getQty()) ;
}

echo $weight;