Boost-TS

Boost is a collection of libraries for the TypeScript programming language designed to enhance its capabilities across various domains. These libraries provide a wide range of functionality, enabling developers to leverage the full potential of TypeScript and streamline their development process. With Boost, TypeScript developers can efficiently tackle complex tasks, improve code readability, and maintainability, while also benefiting from advanced features and best practices.

Available Libraries

• Match Pattern
• Optional Pattern

Installation

npm i @expressots/boost-ts

Match Pattern Usage

• Using Match pattern with enums

import { match } from "./match-pattern";

const enum Coin {
    Penny,
    Nickel,
    Dime,
    Quarter
}

function valueInCents(coin: Coin): number {
    return match(coin, {
        [Coin.Penny]: () => 1,
        [Coin.Nickel]: () => 5,
        [Coin.Dime]: () => 10,
        [Coin.Quarter]: () => 25,
    })
}

console.log(valueInCents(Coin.Penny)); // 1

• Using Match pattern with numbers

let isNumber: number = 1;

const result = match(isNUmber, {
  1: () => 1,
  2: () => 2,
  "_": () => "No number found"
});

console.log(result); // 1

• Using Match pattern with boolean

let isOn: boolean = true;

const result = match(isOn, {
  true: () => "The light is on",
  false: () => "The light is off",
});

console.log(result); // The light is off

• Using Match pattern with Optional pattern

import { Some, None, Optional, matchOptional } from "./optional-pattern";
import { match } from "./match-pattern";

const v1: Optional<number> = Some(1);
const v2: Optional<number> = None();

const result = match(v1, {
    Some: (x) => x + 1,
    None: 0,
});

console.log(result); // 2

• Other possible combinations
  • "expressions..=expressions" -> numbers or characters
  • "isOr: this | that | other"
  • "Regex: "/[a-z]/"

const result = match("a", {
  "1..=13": () => "Between 1 and 13",
  "25 | 50 | 100": () => "A bill",
  "a..=d": () => "A letter",
  "/[a-z]/": () => "A lowercase letter",
  "_": () => "Default",
});
console.log(result); // A letter

Optional Pattern Usage

const someValue: Optional<number> = Some(1);

function plusOne(x: Optional<number>): number {
    return match(x, {
        Some: (x) => x + 3,
        None: 0,
    })
}

console.log(plusOne(None())); // 0

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT