İçereği Atla
Menü
Bu soru işaretlendi
1 Cevapla
3907 Görünümler

Hello guys,

I really don't understand this new problem in Javascript.

I'm in the javascript function update_payment_summary in the point of sale.


This one works well :

var currentOrder = this.pos.get('selectedOrder');
var plines = currentOrder.get('paymentLines').models;

for (var i = 0; i < plines.length; i++) {
    var message = plines[i].get_type();
    console.log('payment_method ' + message +' et le i est : ' + i);
}

The log displays :  "payment_method cash et le i est : 0"


This one doesn't work ??????? :

var currentOrder = this.pos.get('selectedOrder');
var plines = currentOrder.get('paymentLines').models;

var i = 0;
var message = plines[i].get_type();
console.log('payment_method ' + message +' et le i est : ' + i); }

I get this error :  TypeError: plines[i] is undefined



I'm crazy or what?

Thanks to help

Avatar
Vazgeç
Üretici En İyi Yanıt

I have found my error.

When the point of sale load at the beginning, the function update_payment_summary is called.

This first time that the function is called, there is no paymentlines.

So my plines variable is undefined.

The using of the for statement is not the problem.

This one works :

                if (plines.length > 0) {
                           var i = 0;  
                      var mes = plines[i].get_type();
                       console.log('payment_method' + mes +'et le i est : ' + i);
                }


Avatar
Vazgeç
İlgili Gönderiler Cevaplar Görünümler Aktivite
0
Tem 25
294
1
Tem 25
5072
0
Tem 25
639
0
Haz 25
709
1
Haz 25
872