common/packages/type-primitives/README.md

@polkadot/primitives

Base flow definitions for the base Polkadot types as defined in the specification. It is useful for implementations, applications and libraries, where type-checking of the JavaScript base types is of importance.

Usage

Installation -

npm install --save @polkadot/primitives

Usage -

// @flow

import type { AccountId, Balance } from '@polkadot/primitives/base';

function getBalance (accountId: AccountId): Balance {
 ...
}