Deep links: https://www.typescriptlang.org/docs/handbook/advanced-types.html#type-guards-and-differentiating-types https://www.typescriptlang.org/docs/handbook

Deep links: https://www.typescriptlang.org/docs/handbook/advanced-types.html#type-guards-and-differentiating-types https://www.typescriptlang.org/docs/handbook/advanced-types.... https://www.typescriptlang.org/docs/handbook/advanced-types.html#discriminated-unions https://www.typescriptlang.org/docs/handbook/advanced-types....