import { createHash } from 'crypto' ; export function makeString ( length ) { let result = '' ; const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789' ; const charactersLength = characters . length ; for ( let i = 0 ; i < length ; i ++ ) { result += characters . charAt ( Math . floor ( Math . random ( ) * charactersLength ) ) ; } return result ; } param { string } s return { string } export const hashCode = ( s ) => { return createHash ( 'sha256' ) . update ( s ) . digest ( 'hex' ) ; } ;