modifyAt

import { modifyAt } from "https://github.gh-proxy.cn/raw.githubusercontent.com/baetheus/fun/main/record.ts";

Modify a value A into a ReadonlyRecord at the key location. If the object does not hold the specified key then no change is made. This is the same function as modify with the order of parameters flipped.

@example

import * as R from "./record.ts";
import { pipe } from "./fn.ts";

const inc = (n: number) => n + 1;
const atOne = R.modifyAt('one');

const result1 = pipe(
  { one: 1, two: 2 },
  atOne(inc),
); // { one: 2, two: 2 }
const result2 = pipe(
  { two: 2 },
  atOne(inc),
); // { two: 2 }

function modifyAt(key: string): <A>(modifyFn: (a: A) => A) => (ua: ReadonlyRecord<A>) => ReadonlyRecord<A>;

modifyAt(key: string): <A>(modifyFn: (a: A) => A) => (ua: ReadonlyRecord<A>) => ReadonlyRecord<A>

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§Parameters

key: string

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§Return Type

<A>(modifyFn: (a: A) => A) => (ua: ReadonlyRecord<A>) => ReadonlyRecord<A>

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