Files
detective/Container.ts
2021-05-17 22:00:30 -07:00

30 lines
632 B
TypeScript

import type { Item } from "./data/data.ts";
export default class Container {
protected items: Item[];
constructor(items: Item[]) {
this.items = items;
}
description(items: Item[]): string | null {
if (items.length === 0) return null;
const vowels = ["a", "e", "i", "o", "u"];
const description = items
.map(({ name }, i) => {
let anItem = `${vowels.includes(name[0]) ? "an" : "a"} ${name}`;
// if we have more than one item, and this is the last item...
if (i > 1 && i + 1 === items.length) {
anItem = `and ${anItem}`;
}
return anItem;
})
.join(", ");
return description;
}
}