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defineReadOnly<T, K extends keyof T>

Let's you overwrite a readonly property on a class.

Borrowed from ethers.


import { defineReadOnly } from "@alchemy/aa-core";

class Test {
  readonly a: number = 1;
  setA(a: number) {
    defineReadOnly(this, "a", a);


object: T

The object on which to overwrite the readonly property.

key: K where K extends keyof T

A key on the object to overwrite.

value: T[K]

The value to overwrite the readonly property with.