30df6c10ea
* test: improve utils coverage * refactor: review - rename isDefined to isNonNullable, update tests and return statement
28 lines
834 B
TypeScript
28 lines
834 B
TypeScript
/**
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* Transforms an array of items into an object where the keys are computed from each item.
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*
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* @param array - The array to transform.
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* @param computeItemKey - A function that computes a key from an item.
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*
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* @returns An object where the keys are computed from the items in the array.
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*
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* @example
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* mapArrayToObject(
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* [{ id: '1', type: 'fruit' }, { id: '2', type: 'vegetable' }, { id: '3', type: 'fruit' }],
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* ({ id }) => id,
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* )
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* ⬇️
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* {
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* '1': { id: '1', type: 'fruit' },
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* '2': { id: '2', type: 'vegetable' },
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* '3': { id: '3', type: 'fruit' },
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* }
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*/
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export const mapArrayToObject = <ArrayItem, Key extends string>(
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array: ArrayItem[],
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computeItemKey: (item: ArrayItem) => Key,
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) =>
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Object.fromEntries(
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array.map((item) => [computeItemKey(item), item]),
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) as Record<Key, ArrayItem>;
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