如何更新值在quasar的数组中存在

Question

我将数组声明为

const myproducts = ref（[]）

之后，我将值推向数组。现在，myproducts就像

[ { "id": 1, "qty": 1 }, { "id": 7, "qty": 1 } ]

 var old_qty = myproducts.value.find(x => x.id === id).qty
 var new_qty = old_qty +1

我如何使用new_qty的ID 1中的数组中存在QTY？

tia

Answer 1

   var old_qty = myproducts.value.find(x => x.id === id).qty
   var new_qty = old_qty +1
   myproducts.value.find(x => x.id === id).qty = new_qty

或者

myproducts.value.find(x => x.id === id).qty+=1;