コンテンツへスキップ
メニュー
この質問にフラグが付けられました
1 返信
3912 ビュー

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

アバター
破棄
著作者 最善の回答

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);
                }


アバター
破棄
関連投稿 返信 ビュー 活動
0
7月 25
302
1
7月 25
5087
0
7月 25
650
0
6月 25
716
1
6月 25
889