• use for multiple if checks
• use for enum-like value check
• use for multiple type checks in TS

const browser = 'IE';

switch (browser) {
    case 'IE':
        console.log('go away');
        break;
    case 'Chrome':
    case 'Firefox':
        console.log('love you');
        break;
    default:
        console.log('same all');
        break;
}