validateSeed

Signature

validateSeed(s: string): s is Seed

Purpose

A type predicate that returns true when s is a valid seed (55 lowercase letters), narrowing the type to Seed. Does not throw — use this when you want to branch on valid/invalid input.

import { validateSeed } from "@qubic.org/wallet"

function handleInput(raw: string) {
  if (!validateSeed(raw)) {
    showError("Invalid seed — must be 55 lowercase letters")
    return
  }
  // raw is now typed as Seed
  const wallet = createWallet(raw)
}

Parameters

Returns

s is Seed — true if the string is exactly 55 lowercase ASCII letters, false otherwise.

Use validateSeed when you want to branch on valid/invalid without throwing. Use toSeed when you expect valid input and want an error for anything else.