I have this problem I push data this way into array.
this.checkedList.push({"customer_id" : option.id });
How can I splice this value out again? Without key this is working:
this.checkedList.splice(option.id,1);
You could use the the findIndex prototype method on the array to find key for the element you're looking for, e.g.
let index = this.checkedList.findIndex((element) => element["customer_id"] == option.id);
and then splice the array as you'd normally do.
this.checkedList.splice(index, 1);