### Install Dependencies, Build, and Start Development Server

Source: https://github.com/yoast/wordpress-seo/blob/trunk/apps/content-analysis-webworker/readme.md

These commands are used to set up and run the content analysis web worker project locally. Ensure you have Node.js and Yarn installed.

```shell
yarn        # Install the dependencies.
yarn build  # Build the project.
yarn start  # Start the development server.
```

--------------------------------

### Local Development Setup for UI Library

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/ui-library/readme.md

Install dependencies, run Storybook for local development, and build a static Storybook site using yarn commands.

```sh
# Install dependencies
yarn install
# Run Storybook for local development
yarn storybook
# Build a static Storybook
yarn build:storybook
```

--------------------------------

### Install Dependencies

Source: https://github.com/yoast/wordpress-seo/blob/trunk/apps/content-analysis-api/readme.md

Install the project dependencies using Yarn.

```bash
yarn
```

--------------------------------

### Install PHPUnit Globally

Source: https://github.com/yoast/wordpress-seo/blob/trunk/tests/Unit/README.md

Install a specific version of PHPUnit globally for first-time use.

```bash
composer global require phpunit/phpunit:5.7
```

--------------------------------

### Start Server

Source: https://github.com/yoast/wordpress-seo/blob/trunk/apps/content-analysis-api/readme.md

Start the Node.js server. You can either let it pick a random port or specify a port using the PORT environment variable.

```bash
yarn start            # Picks a random port.
```

```bash
PORT=3000 yarn start  # Specify a port (used in documentation).
```

--------------------------------

### Install YoastSEO.js with npm

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/README.md

Install the YoastSEO.js package using npm.

```bash
npm install yoastseo
```

--------------------------------

### Start Local WordPress Environment

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/e2e-tests/README.md

Starts a local WordPress environment using @wordpress/env and sets up necessary plugins. Ensure Docker is running.

```bash
bash e2e-test-env-setup.sh
```

--------------------------------

### Install Browserslist Config with npm

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/browserslist-config/README.md

Install the necessary packages for Browserslist configuration using npm.

```shell
$ npm install browserslist @yoast/browserslist-config --save-dev
```

--------------------------------

### Install Dependencies

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/e2e-tests/README.md

Installs project dependencies using composer and yarn, and builds the development environment.

```bash
composer install
yarn
grunt build:dev
```

--------------------------------

### Install Xdebug Extension

Source: https://github.com/yoast/wordpress-seo/blob/trunk/tests/Unit/README.md

Install the Xdebug extension using PECL for code coverage analysis.

```bash
pecl install xdebug
```

--------------------------------

### Install YoastSEO.js with Yarn

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/README.md

Install the YoastSEO.js package using Yarn.

```bash
yarn add yoastseo
```

--------------------------------

### Install Browserslist Config with Yarn

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/browserslist-config/README.md

Install the necessary packages for Browserslist configuration using Yarn.

```shell
$ yarn add --dev @yoast/browserslist-config
```

--------------------------------

### Install Dependencies and Run Storybook

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/related-keyphrase-suggestions/readme.md

Commands to install dependencies and run Storybook for local development. Also includes a command to build a static Storybook.

```sh
yarn install
```

```sh
yarn storybook
```

```sh
yarn build:storybook
```

--------------------------------

### Install Yoast UI Library

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/ui-library/readme.md

Install the UI library and its peer dependencies using Yarn.

```sh
yarn add @yoast/ui-library react react-dom
```

--------------------------------

### Install Composer Dependencies

Source: https://github.com/yoast/wordpress-seo/blob/trunk/tests/Unit/README.md

Execute this command to install the necessary Composer dependencies, which may include tools for linting and codestyle checks.

```bash
composer install
```

--------------------------------

### Website Structured Metadata Example

Source: https://github.com/yoast/wordpress-seo/wiki/Yoast-SEO-product-sheet

Example of ld+json for Website schema, including name, alternateName, and SearchAction for sitelinks searchbox.

```JSON
{
	"@context":"http:\/\/schema.org",
	"@type":"WebSite",
	"url":"https:\/\/yoast.com\/",
	"name":"Yoast",
	"alternateName":"Yoast.com",
	"potentialAction":{
		"@type":"SearchAction",
		"target":"https:\/\/yoast.com\/?s={search_term_string}",
		"query-input":"required name=search_term_string"
	}
}
```

--------------------------------

### Install Yoast Tailwind CSS Preset

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/tailwindcss-preset/readme.md

Install the preset and its peer dependencies using Yarn.

```shell
yarn add --dev @yoast/tailwindcss-preset tailwindcss @tailwindcss/container-queries @tailwindcss/forms
```

--------------------------------

### Install WordPress SEO Development Version with Composer

Source: https://github.com/yoast/wordpress-seo/wiki/Downloading-WordPress-SEO-development-version

Use these Composer commands to install the development version of WordPress SEO, including all dependencies. Ensure Composer is installed and updated before running.

```bash
composer selfupdate
composer install
```

--------------------------------

### Automate Composer Install with Git Hooks

Source: https://github.com/yoast/wordpress-seo/wiki/Using-Composer

A bash script to be placed in .git/hooks/post-checkout to automatically run 'composer install' when composer.lock changes.

```bash
#!/bin/bash

# Put this file at: .git/hooks/post-checkout
# and make it executable
# You can install it system wide too, see http://stackoverflow.com/a/2293578/685587

PREV_COMMIT=$1
POST_COMMIT=$2

GIT_DIR=$(git rev-parse --git-dir)
GIT_DIR_MERGE="$GIT_DIR"/rebase-merge
GIT_DIR_APPLY="$GIT_DIR"/rebase-apply

GIT_MERGE_REBASE=false
[[ (-d "$GIT_DIR_MERGE" && -f "$GIT_DIR_MERGE/interactive") || -d "$GIT_DIR_APPLY" ]] && GIT_MERGE_REBASE=true

NOCOLOR='\e[0m'
REDCOLOR='\e[37;41m'

function composer.lock {
    echo -e "$REDCOLOR composer.lock has changed: running composer install $NOCOLOR"

    COMPOSER=
    if [ -f composer.phar ]; then
        COMPOSER="php composer.phar"
    fi

    which composer > /dev/null 2>&1
    if [ $? ]; then
        COMPOSER="composer"
    fi

    if [[ $GIT_MERGE_REBASE = false && -n "$COMPOSER" ]]; then
        $COMPOSER install
    fi
}

function package.json {
    echo -e "$REDCOLOR package.json has changed: running npm install $NOCOLOR"

    which npm > /dev/null 2>&1
    if [[ $GIT_MERGE_REBASE = false && $? ]]; then
        npm install
    fi
}

FUNCS=$(declare -F -p | cut -d " " -f 3)
for FUNC in $FUNCS
do
    DIFF=$(git diff --shortstat $PREV_COMMIT..$POST_COMMIT $FUNC 2>/dev/null)
    if [[ $DIFF != "" ]]; then
        $FUNC
    fi
done
```

--------------------------------

### WHILE...DO Loop Example: Day Tracking

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

An example of a WHILE...DO loop that tracks the day of the week. It increments v_Day_of_Week every 24 hours and resets it to 1 on the eighth day.

```Pseudocode
While v_Var1 = 0 DO {

INC v_Day_of_Week IF v_Day_of_Week = 8 THEN v_Day_of_Week = 1 TIME(24 Hr)

}
```

--------------------------------

### Synonym Example

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/GLOSSARY.md

Provides examples of synonyms for a given keyphrase, illustrating alternative terms that can be used for content variation and to avoid keyword stuffing.

```text
Keyphrase: "car"
Synonyms: "automobile", "vehicle", "motor vehicle"
```

--------------------------------

### Boolean Operators Examples

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Illustrates the use of basic and compound boolean operators for creating conditional expressions in ProcessModel.

```ProcessModel
a_Weight = 2.5
v_Total_Pieces = 50
```

```ProcessModel
a_Weight > 2.5
v_Total_Pieces > 50
```

```ProcessModel
a_Weight < 2.5
v_Total_Pieces < 50
```

```ProcessModel
a_Weight <> 2.5
v_Total_Pieces <> 50
```

```ProcessModel
a_Weight >= 2.5
v_Total_Pieces >= 50
```

```ProcessModel
a_Weight <= 2.5
v_Total_Pieces <= 50
```

```ProcessModel
a_Weight = 25 AND v_Total = 30
v_Total >= 20 AND v_Total <= 30
```

```ProcessModel
a_Weight > 5 OR v_Total <= 20
v_Total = 30 OR a_Weight =15
```

--------------------------------

### Examples of Boolean Expressions

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Demonstrates the construction of simple and compound boolean expressions using numeric expressions and logical operators within IF...THEN statements.

```ProcessModel
IF v_Total_Pieces > 5 * a_Pkg_Qty THEN...
```

```ProcessModel
IF (a_Weight + 5) <= (a_Pkg_Qty / 2) THEN...
```

```ProcessModel
IF N(25, 4.8) + a_Weight = v_Total_Pieces - 10 THEN...
```

```ProcessModel
IF a_Weight >= v_Total_Pieces AND a_Pkg_Qty > 20 THEN...
```

```ProcessModel
IF v_Total_Pieces = a_Pkg_Qty OR a_Pkg_Qty > 35 THEN...
```

--------------------------------

### Simple GET Statement

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Requests a single unit of a resource named 'Operator'.

```ProcessModel
GET Operator
```

--------------------------------

### User-Defined Distribution Example

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Defines a custom distribution based on percentages and corresponding values. Supports two to five outcomes.

```text
D n (% 1 ,x 1 ,...% n ,x n )
% = percentage (entries must total 100%) x = value (numeric or pre-defined descriptor) n = number of%, x entries between 2 and 5 **example:** D3(20, 35, 30, 45, 50, 37.5)
```

```text
D2(38, 25, 62, 43)
```

--------------------------------

### Triangular Distribution Example

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Shows how to use a triangular distribution to define a time range for an activity, incorporating minimum, most likely, and maximum values.

```ProcessModel
_TIME (T(2, 2.6, 4) min)_
```

--------------------------------

### GET Statement with Quantity

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Requests three units of the resource named 'Operator'.

```ProcessModel
GET 3 Operator
```

--------------------------------

### Numeric Expression Examples

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Illustrates various ways to construct numeric expressions by combining attributes, variables, distributions, and constants with mathematical operators. Parentheses can be used to control evaluation order.

```Pseudocode
a_Attr1
```

```Pseudocode
50.91
```

```Pseudocode
v_Var1 + 5
```

```Pseudocode
v_Total_Pieces + 5 * a_Pkg_Qty
```

```Pseudocode
(a_Weight + 5) * (a_Pkg_Qty / 2)
```

```Pseudocode
N(25, 4.8) + a_Weight * (v_Total_Pieces - 10)
```

--------------------------------

### Triangular Distribution Example

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Defines a triangular distribution with minimum, mode, and maximum values. Ideal for modeling activity times due to its flexibility and realism.

```text
T(a, b, c,s)
a = minimum, b=mode, c=maximum, s = stream (optional) **example:** T(2,10,13)
```

```text
T(1, 3.4, 15)
```

--------------------------------

### Calculate processing time with GROUPQTY()

Source: https://github.com/yoast/wordpress-seo/blob/trunk/packages/yoastseo/examples/PerformanceAnalyses/text3.html

Calculate the processing time for a batched entity using GROUPQTY(). This example processes documents in a folder, with each document taking 3.0 minutes.

```plaintext
TIME (GROUPQTY() *3.0 min)
```