compact filtered

computed: {
    filtered() {
        let result
        let newdata = []
        for(let i = 0; i< this.data.length; i++) {
            if(this.cekKondisi(this.data[i])) {
                newdata.push(this.data[i])
            }
        }
        if(this.filterGroup == '') {
            result = newdata
        } else {
            result = newdata.filter(x => x.group_id == this.filterGroup)
        }
        return result
    }
  },