如何在JS對象

Question

這裏用戶每次拿到最後一個屬性值選擇一些選項，節點對象，並將狀態，我需要一個最後一個節點對象的狀態後

var breadCrumb = [{ 
     breadCrumbN: { 
      node: { 
      state: "test", 
      node: { 
       state: "test^test2", 
       node: { 
       state: "test^test2^test3", 
       node: { 
       state: "test^test2^test3^test4" // like to post the last state. the node object will be added for each selection 
       } 
       } 
      } 
      } 
     } 
    }] 

Answer 1

嘗試這種解決方案與遞歸。

let obj = { 
 
    node: { 
 
     state: "test", 
 
     node: { 
 
     state: "test^test2", 
 
     node: { 
 
      state: "test^test2^test3", 
 
      node: { 
 
       state: "test^test2^test3^test4" 
 
      } 
 
     } 
 
     } 
 
    } 
 
}; 
 

 
function getLastNodeState(obj) { 
 
    return obj.node ? getLastNodeState(obj.node) : obj.state; 
 
} 
 

 
console.log(getLastNodeState(obj));