How http array post

Ionic Framework ionic-v3
1

hi.
ı want to array veriable send
my http post code.
this work

"kid":[1,2],"cinsiyet":['byn','bay']`

let param={"kid":[1,2],"cinsiyet":['byn','bay'],"nereden":this.carInfo.nereden,"nereye":this.carInfo.nereye,"rtarih":this.carInfo.tarih,"isim":isim,"tel":tel,"nerden":nerden,"aracid":104};
      
      this.HttpC.post("url.com/vipapp/api/bilgiEkleRun",param).subscribe(p=>{
        this.sonuc=p["Result"];
        console.log(this.sonuc);
      });

why this not work ?

"kid":this.koltuklar,"cinsiyet":this.cinsiyetler

 let param={"kid":this.koltuklar,"cinsiyet":this.cinsiyetler,"aracid":this.carInfo.id,"nereden":this.carInfo.nereden,"nereye":this.carInfo.nereye,"rtarih":this.carInfo.tarih,"isim":isim,"tel":tel,"nerden":nerden};
      console.log(param);
      this.HttpC.post("http://192.168.1.79/vipapp/api/bilgiEkleRun",param).subscribe(p=>{
        this.sonuc=p["Result"];
        console.log(this.sonuc);
      });

result console log

cinsiyet: Array(1)
0: Array(6)
   4: ["bay"]
   5: ["bay"]

kid: Array(1)
0: Array(6)
   4: (4) [empty × 4]
   5: (5) [empty × 5]

thanks

2

why not happened ? ı want solution this problem

3

ı find the solution the problem thanks