(b: bigint)
| 836 | * |
| 837 | * ```ts import.meta.vitest |
| 838 | * import { BigInt, Option } from "effect" |
| 839 | * |
| 840 | * BigInt.fromString("42") // => Option.some(42n) |
| 841 | * BigInt.fromString(" ") // => Option.none() |
| 842 | * BigInt.fromString("a") // => Option.none() |
| 843 | * ``` |
| 844 | * |
| 845 | * @see {@link BigInt} for native constructor coercion that throws on invalid input |
| 846 | * |