| import invariant from 'tiny-invariant'; | |
| import warning from 'tiny-warning'; | |
| invariant(true, 'error occurred! o no'); | |
| warning(true, 'warning - water is wet'); | |
| export const sum = (a: number, b: number) => { | |
| if ('development' === process.env.NODE_ENV) { | |
| console.log('dev only output'); | |
| } | |
| return a + b; | |
| }; | |