ini soal dari sesama anggota clan nasution

(async function (){
        let data = await fetch('https://mul14.github.io/data/employees.json').then(result=>result.json()).then(result=> result);
    let gaji = data.filter(item=>{
        return (item.salary>1500000) ? true : false;
     })
     console.log('gaji',gaji);

      let domisili =  data.filter(item=>{
            return (item.addresses[0].city==="DKI Jakarta") ? true : false;})
      console.log('domisili',domisili);

      let date =  data.filter(item=>{
            let birth =new Date(item.birthday.split('-')).getMonth();
            return (birth===2)? true:false;
      })
      console.log('ultah ',date);

      let department =  data.filter(item=>{
            return (item.department.name=="Research and development")? true:false;
      })
      console.log('department ',department);

      let kehadiran =  data.map(item=>{
        let kerja = item.presence_list.filter(list=>{
          let harikerja =new Date(list.split('-')).getMonth();
              return (harikerja===9) ? true: false;
        });//end filter
        let tidak_hadir = 31 - kerja.length;//anggaplah tiap minggu server rusak
        return {...item,bolos :tidak_hadir};
       });
      console.log('kehadiran',kehadiran);
}
)()