@geffencode/linqscript v1.0.2

Project Title

A basic implementation of LINQ methods for Typescript.

Installation

$ npm install @geffencode/linqscript

Usage/Examples

import { AsLinq, LINQArray} from "@geffencode/linqscript";

interface Person {
    id: number;
    name: string;
    age: number;
    city: string;
    hobbies: string[]
}

const persons: Person[] = myService.getPersons();

// By declaring a new LINQArray
const linqArray = new LINQArray<Person>(...persons);
const names = linqArray.Select(p => p.name); // ['John Doe', 'Jane Doe', 'Jane Smith', ...]

// Copying an existing array as LINQArray
const ids = AsLinq(persons).Select(p => p.id); // [1, 2, 3, ...]

// Getting the hobbies of people older than 30 for a city
const hobbies = linqArray.Where(p => p.age > 30 && p.city == 'Mogadishu')
                                  .SelectMany(p => p.hobbies)
                                  .Distinct(); // Remove duplicates

// Id, name and age of all people that play competitive chess boxing in Thimphu
// ordered by age descending, returning a regular array.
const chessboxers = linqArray.Where(p => p.city === 'Thimphu')
                            .Select(({id, name, age}) => ({id, name, age}))
                            .OrderByDescending(p => p.age)
                            .ToArray();

// Get all persons grouped by city
const byCity = linqArray.GroupBy(p => p.city);

API Reference