@dillonkearns/elm-graphql/examples/src/subscription/node_modules/@jumpn/utils-composite/dist/set.js.flow

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// @flow

import {curry} from "flow-static-land/lib/Fun";

import shallowCopy from "./shallowCopy";

import type {Composite, Key} from "./types";

/**
 * Returns a new composite with the result of having updated the property with
 * the given key with the specified value.
 */
const set = (key: Key, value: mixed, composite: Composite): Composite => {
  const copy = shallowCopy(composite);

  copy[(key: any)] = value;

  return copy;
};

export default curry(set);