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Email support can be a very strong drupal capability.
You can create emails according to events, news, etc. with personalization and desired format and template.
In some cases, you need to define the email in a way that it will not appear as spam on the target email server.

Email on general drupal events like creating new articles are covered with the rules module and you don't need to program their email support.

entityQuery intro and examples

A node can include a few fields.
Every field is a table in the database.
So If I need to find a specific node, doing it with SQL means doing complicated queries, which might have few joins and many conditions, The Drupal platform created a simpler way to deal with it: EntityQuery

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Code Snippet

$query = \Drupal::entityQuery('node')
  ->condition('type', 'page')
  ->condition('field_some_field', 14)
  ->accessCheck(TRUE);
$results = $query->execute();

AngularJS Vs ReactJS comparison

Web development teams across the world highly prefer AngularJS and ReactJS.
However, technical decision-makers, like project managers and development managers face the dilemma of choosing between the two.
As you will agree, every business has its unique development needs. Therefore, there is no standalone framework that would suit the varied development needs.
We’ve attempted to offer a detailed comparison to support the business processes.

Drupal And React

Its time for a more powerful client-side with drupal, and we can do this with React

So, what is React and how can we integrate it with Drupal. I will try to answer both questions and more within this article.

React is a JavaScript library that makes it easy to create interactive user interfaces.

Drupal is a content management system (CMS) with a powerful web services API.

Open Form in Modal mode also known as Pop-Up

Modal dialogs are incredibly useful on websites as they allow the user to do something without having to leave the web page they are on. Drupal 8 now has a Dialog API in core, which greatly reduces the amount of code you need to write to create a modal dialog. Dialogs in Drupal 8 leverage jQuery UI.

Fetch and display data from API in React js

When you develop an application, you will often need to fetch data from a backend or a third-party API.
In this article, I will try to go through the process of fetching and displaying data from a server using React Fetch.

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Code Snippet

import React, { useEffect, useState } from "react";

function handleClick() {
    alert('You clicked node ');
}

export default function RWTaskIssues({nodeid}) {        
    const FetchAPI = '/rwtask/issues?task=' + nodeid + '&op=get';
    console.log("api fetch: " + FetchAPI);
    
    const [issues, setIssues] = useState([]);
    const fetchData = () => {
        fetch(FetchAPI)
            .then(response => {
                return response.json();
            })
            .then(response => {
                console.log("response data: " + response.data.items);
                setIssues(response.data.items);
            });
    };

    useEffect( () => {
        fetchData();
    }, []) ;   
    
    console.log("issues data: " + issues);
    
    return (
        <div className="block block-layout-builder block-field-blocknoderwtaskfield-rwtask-issue">
            <h2 className="block-title">תיאור הבעיה</h2>
            <div className="block-content">               
                {issues.length > 0 && (
                    <div className="field field-name-field-rwtask-issue field-type-text-long field-label-hidden field-items">
                        {issues.map(item => (
                            <div key={item.key} className="field-item" dangerouslySetInnerHTML={{__html: item.value}} />
                        ) ) }
                    </div>
                )}
                <button onClick={handleClick}>
                    Edit
                </button>            
            </div>
        </div>
    );        
}