如何在ImmutableJS中更新深层列表？

Question

Can anyone tell me what how to update 'value' by id in this structue in ImmutableJS?

map = {
  list: [
    {
      id: 1,
      value: 'update'  
    }
  ]
}

Answer 1

You can use the code below. However, it is not the best solution, because that will search all items in the list. If you can change your structure instead of List you can use OrderedMap .

var newData = map.set("list", map.get("list").map(data => data.get("id") === 1 ? data.set("value", "updatedValue") : data));