typescript - How to structure utility class -

i have several utility functions. best way package these up, , import them?

this trying do:

import * util './util'  export class myclass{      constructor()      {            util.dosomething("test");      } } 

then in class:

export class util{     dosomething(val: string){ return val;}      dosomethingelse(val: string{ return val;} } 

the error message vs "property dosomething not exist on type util."

if create file utils.ts contains

export default class utils {     static dosomething(val: string) { return val; }     static dosomethingelse(val: string) { return val; } } 

then can simplify client code this:

import utils './utils'  export class myclass {      constructor()      {          utils.dosomething("test");      } }