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TypeScript object types with optional and minimally required properties

· 3 min read


// Solution 1
type LabelEntry = { label: string };
type ImageEntry = { image: string };
type Entry = LabelEntry | ImageEntry;

// Solution 2
type Entry = Record<'label' & 'image', string>;

An object type that I find myself creating very frequently is one that has one or all of several properties. For example, I can create an entry with a text label, one with an image, or one with both: