type-fns/dist/types/PickOne.test.js

A set of types, type checks, and type guards for simpler, safer, and easier to read code.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
describe('PickOne', () => {
    it('should constrain type correctly', async () => {
        const findWrench = async ({}) => {
            // ...
        };
        // you can find by metric
        await findWrench({
            size: {
                metric: { millimeters: 16 },
            },
        });
        // you can find by imperial
        await findWrench({
            size: {
                imperial: { inches: '5/16' },
            },
        });
        // you can't find by both
        await findWrench({
            // @ts-expect-error - cant be both
            size: {
                metric: { millimeters: 16 },
                imperial: { inches: '5/16' },
            },
        });
        // you can't find by neither
        await findWrench({
            // @ts-expect-error - cant be neither
            size: {},
        });
    });
});
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