learning_deno

import { learnDeno } from "./dep.ts";

interface Object {
    shape: string;
    type: string;
    size: number;
    emote: string;
}

const objects: Object[] = [
    {
        shape: "car",
        type: "vehicle",
        size: 12,
        emote: "🚗"
    },
    {
        shape: "circle",
        type: "geometric",
        size: 6,
        emote: "🔴"
    },
    {
        shape: "triangle",
        type: "geometric",
        size: 5,
        emote: "🔺"
    }, {
        shape: "square",
        type: "geometric",
        size: 7,
        emote: "🟥"
    }
];

const objectGroups = learnDeno.countBy(objects, 'type'); // Output: {geometric: 3, vehicle: 1 }