Observer Pattern

Case Study of Observer Pattern based on Youtube video

Renato Augusto

Java Example

Dependencies

• java 17 (java -version)
• maven (mvn --version)

# Enter in java folder
cd java

# Generate .jar
mvn clean package

# Run .jar
java -jar ./target/observer-pattern-1.0-SNAPSHOT.jar

Javascript Example

Dependencies

• nodejs (node --version)

# Enter in javascript folder
cd javascript

# Run
node index.js

Typescript Example

Dependencies

• nodejs (node --version)
• npx (npx --version)

# Enter in typescript folder
cd typescript

# Install npm Dependencies
npm install

# Compile typescript and run
npm run start