nearest

get_nearby_delivery_fees.ts

export function get_nearby_delivery_fees(distance: number) {
    if (!Number.isSafeInteger(distance)) {
        throw new Error('Invalid distance');
    }

    const table_price = [
        {
            until: 6.5,
            fee: 12.5
        },
        {
            until: 7.5,
            fee: 14.5
        },
        {
            until: 8.5,
            fee: 15.5
        },
        {
            until: 9.5,
            fee: 16.5
        },
        {
            until: 10.5,
            fee: 17.5
        },
        {
            until: 15.5,
            fee: 18.5
        },
        {
            until: 25.5,
            fee: 21.5
        },
        {
            until: Infinity,
            fee: 25
        }
    ];

    return table_price.find(price => distance <= price.until);;
}

get_nearby_delivery_fees(7) // { until: 7.5, fee: 14.5 }
get_nearby_delivery_fees(7.5) // { until: 7.5, fee: 14.5 }
get_nearby_delivery_fees(8) // { until: 8.5, fee: 15.5 }
get_nearby_delivery_fees(100) // { until: Infinity, fee: 25 }