// Map
{
    const options = new Map();
    
    options.set('param1', 'value1');
    options.set('param2', 'value2');
    options.set('param3', 'value3');
    
    for (const [key, value] of options)
    {
        console.log(key + ' => ' + value);
    }
}

console.log();
console.log();
console.log();

// object
{
    const options = {
        param1: 'value1',
        param2: 'value2',
        param3: 'value3'
    };

    for (const key in options)
    {
        console.log(key + ' => ' + options[key]);
    }
}