1.0.5 • Published 2 years ago
design-patterns-typescript v1.0.5
design-patterns-typescript
This npm package is developed for support the design patterns in typescript. We can use these design patterns in our frontend web development.
Installation
Install design-patterns-typescript with npm
npm i design-patterns-typescript
Badges
Add badges from somewhere like: shields.io
Usage/Examples
Using Flyweight design pattern
import {FlyweightFactory} from 'design-patterns-typescript'
const factory = new FlyweightFactory([
['Chevrolet', 'Camaro2018', 'pink'],
['Mercedes Benz', 'C300', 'black'],
['Mercedes Benz', 'C500', 'red'],
['BMW', 'M5', 'red'],
['BMW', 'X6', 'white'],
]);
factory.listFlyweights();
function addCarToPoliceDatabase(
ff: FlyweightFactory, plates: string, owner: string,
brand: string, model: string, color: string,
) {
console.log('\nClient: Adding a car to database.');
const flyweight = ff.getFlyweight([brand, model, color]);
flyweight.operation([plates, owner]);
}
addCarToPoliceDatabase(factory, 'CL234IR', 'James Doe', 'BMW', 'M5', 'red');
addCarToPoliceDatabase(factory, 'CL234IR', 'James Doe', 'BMW', 'X1', 'red');
factory.listFlyweights();
Features
These Structural design patterns are implemented and you can just import them and use.
- Adapter
Allows objects with incompatible interfaces to collaborate.
- Composite
Lets you compose objects into tree structures and then work with these structures as if they were individual objects.
- Decorator
Lets you attach new behaviors to objects by placing these objects inside special wrapper objects that contain the behaviors.
- Flyweight
Lets you fit more objects into the available amount of RAM by sharing common parts of state between multiple objects instead of keeping all of the data in each object.
- Proxy
Lets you provide a substitute or placeholder for another object. A proxy controls access to the original object, allowing you to perform something either before or after the request gets through to the original object.
These Creational design patterns are implemented and you can just import them and use.
- Prototype
Lets you copy existing objects without making your code dependent on their classes.
Contributing
Contributions are always welcome!
.
License
Keywords
design-patterns typescript react node