typescript promist

gistfile1.txt

  promiseExmple(){
    return new Promise((resolve, reject) => {
      setTimeout(()=>{reject('its been 5 sec')},5000)
    });
  }
/* ------------- */
   this.user.promiseExmple().then((result)=>{
       console.log("result: ",result)
    }).catch((err)=>{
       console.log("promise failed: ",err)
     })
/* ------------- */