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Learn Drush: The Drupal Shell

Course

Module Development, Backend and Infrastructure, Site Administration

Drupal 8, 9, 10, and 11

21 tutorials

What Is Drush? Free

Install Drush Using Composer Free

Enable, Update, and Manage Modules and Themes with Drush Free

Use Drush for Common Site and Environment Management Tasks

Use Drush to Speed up Common Drupal Development Tasks

Use Drush to Deploy Drupal Updates

Overview: Drush's Output Formatting System

Automating Drupal Tasks with Drush and Bash Scripts

Drush Site Aliases

Drush Configuration

Develop Drupal Modules Faster with Drush Code Generators

Create a Custom Drush Code Generator

Overview: Creating Your Own Custom Drush Commands

Create a Custom Drush Command

Use Command Line Arguments with a Custom Drush Command

Add Options to a Custom Drush Command

Add an Interactive Prompt to a Drush Command

Logging and Error Handling in Drush Commands

Create Site-Wide Custom Drush Commands

Overview: Drush Hooks

Alter an Existing Drush Command

Integrate JavaScript with Drupal

Guide

Theming, Module Development

Drupal 8, 9, 10, and 11

Using JavaScript in Drupal

Course

Theming, Module Development

Drupal 8, 9, 10, and 11

10 tutorials

Overview: JavaScript in Drupal

Load JavaScript in Drupal with Drupal.behaviors

Wrap Your Custom JavaScript in a Closure

Use Server-Side Settings with drupalSettings

String Manipulation in JavaScript

Use Drupal.theme for HTML Markup in JavaScript

Standardize Your JavaScript with ESLint

Modernizr.js in a Theme or Module

Underscore.js in a Theme or Module

Backbone.js in a Theme or Module

Internationalization (i18n) in Drupal

Course

Theming, Module Development

Drupal 8, 9, 10, and 11

3 tutorials

Make Strings Translatable

Use Drupal.t() for Translatable Strings in JavaScript

Make Your Theme Translatable

Decoupled Headless Drupal

Guide

Module Development

Drupal 8, 9, 10, and 11

Web Services in Drupal

Course

Module Development

Drupal 8, 9, 10, and 11

10 tutorials

Decoupling Explained Free

Is Decoupling the Right Choice?

Building a Solid API

Hosting Implications and Considerations

What Are Web Services? Free

Separation of Concerns: Content vs. Presentation

Detect Presentation in Your Data Model

Modern Web Services with JSON:API and GraphQL

Web Service Documentation

Automatic Documentation with Schemata

Using JSON:API in Drupal

Course

Module Development

Drupal 8, 9, 10, and 11

10 tutorials

Install JSON:API Module

JSON:API Resource Requests Free

JSON:API Relationships

JSON:API Collections

JSON:API Includes

JSON:API Sparse Fieldsets

JSON:API Filtering Collections

JSON:API Filters on Nested Relationships

JSON:API Error Handling

JSON:API Security Considerations

Themes in Drupal

Course

Theming

Drupal 8, 9, 10, and 11

7 tutorials

What Is a Theme? Free

Download, Install, and Uninstall Themes Free

Theme Settings Overview

Change Theme Settings

Add a Screenshot to Your Theme

Core Themes: Bartik Free

Core Themes: Stark Free

Creating Themes in Drupal

Course

Theming

Drupal 8, 9, 10, and 11

10 tutorials

Structure of a Theme

Start a New Theme with Starterkit

Describe Your Theme with an Info File

Theme Inheritance with Base Themes

Drupal Base Themes: Stable and Classy

Use a Base Theme

Regions

Add Regions to a Theme

Fast by Default

Configure Your Environment for Theme Development

Template Files in Drupal Themes

Course

Theming

Drupal 8, 9, 10, and 11

6 tutorials

What Are Template Files?

Override a Template File

Determine the Base Name of a Template

Inspect Variables Available in a Template

Overview: Theming Views Free

Override a View's Wrapper Template

Using Twig in Drupal Templates

Course

Theming

Drupal 8, 9, 10, and 11

10 tutorials

Twig in Drupal

Twig Syntax Delimiters

Arrays and Objects in Twig

Loops and Iterators in Twig

Print Values from a Field with a For Loop

Twig Filters and Functions

Whitespace Control with Twig

Classes and Attributes in Twig Templates

Create Links with Twig in a Template File

Twig Template Inheritance

Asset Libraries in Drupal

Course

Theming, Module Development

Drupal 8, 9, 10, and 11

4 tutorials

What Are Asset Libraries?

Define an Asset Library

Attach an Asset Library

Extend or Alter Existing CSS and JavaScript Asset Libraries

Preprocess Functions in Drupal Themes

Course

Theming

Drupal 8, 9, 10, and 11

4 tutorials

Add Logic with THEMENAME.theme

What Are Preprocess Functions?

Change Variables with Preprocess Functions

Add Variables to a Template File

Theme Hook Suggestions for Drupal Templates

Course

Theming, Module Development

Drupal 8, 9, 10, and 11

2 tutorials

Discover Existing Theme Hook Suggestions

Add New Theme Hook Suggestions

Hands-On Theming Exercises for Drupal

Course

Theming

Drupal 8, 9, 10, and 11

10 tutorials

Set Up Demo Site for Theming Practice Free

Exercise: Create a New Theme

Exercise: Add an Asset Library

Exercise: Configure Your Environment for Theme Development

Exercise: Override the Main Page Template

Exercise: Override the Node Template

Exercise: Override the Main Menu Template

Exercise: Override the Image Field Template

Exercise: Use the t Filter in a Template

Exercise: Preprocess Functions

Render API: How to Output Content

Topic

Theming, Module Development

Drupal 8, 9, 10, and 11

More information

The Render API consists of a standard format for describing data using structured arrays and a process for converting those arrays into the HTML a user sees when interacting with a Drupal site.

CSS in Drupal

Topic

Theming, Module Development

Drupal 8, 9, 10, and 11

More information

Cascading Style Sheets (CSS) files are added as an asset library through a theme’s libraries configuration file. HTML attributes, including classes and IDs, are commonly added in template files with Twig.

Develop Forms in Drupal

Guide

Theming, Module Development

Drupal 8, 9, 10, and 11

Creating Forms in Drupal

Course

Module Development

Drupal 8, 9, 10, and 11

10 tutorials

Form API Overview Free

Form API Life Cycle

Define a New Form Controller and Route

Add Input Elements to a Form

Inject Services into a Form Controller

Provide Default Values for Form Elements

Form Element Reference Free

Alter an Existing Form with hook_form_alter()

Retrieve and Display Forms

Theming Drupal Forms with Twig

Validating Forms in Drupal

Course

Module Development

Drupal 8, 9, 10, and 11

4 tutorials

Validate Form Input

Validate a Form via the Form Controller

Add a Validation Callback to an Existing Form

Validate a Single Form Element