用
.length
var data = [{ id: 1}, { id: 2}];console.log(data.length);更新 ,在您的编辑中,我看到
offer.items_to_receive是
undefined,确保对象
offer具有属性
items_to_receive(应为数组);

用
.length
var data = [{ id: 1}, { id: 2}];console.log(data.length);更新 ,在您的编辑中,我看到
offer.items_to_receive是
undefined,确保对象
offer具有属性
items_to_receive(应为数组);