Int64FromInt64String - API reference

API reference › @evolu/common › Type › Int64FromInt64String

const Int64FromInt64String: transform(
  "Int64FromInt64String",
  Int64String,
  Int64,
  {
    from: (value) => ok(globalThis.BigInt(value)),
    to: (value) => globalThis.String(value) as Int64String,
  },
);

Defined in: packages/common/src/Type.ts:6261

Transforms an Int64String into an Int64.

This is useful at boundaries that expose signed 64-bit integers as decimal text, including SQLite queries that cast INTEGER values to TEXT to avoid a lossy JavaScript number conversion.

Example

import { assertEqual, assertOk, Int64FromInt64String } from "@evolu/common";

const result = Int64FromInt64String.fromUnknown("9223372036854775807");

assertOk(result, 9223372036854775807n);
assertEqual(Int64FromInt64String.to(result.value), "9223372036854775807");