如何在JS对象

Question

这里用户每次拿到最后一个属性值选择一些选项，节点对象，并将状态，我需要一个最后一个节点对象的状态后

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

尝试这种解决方案与递归。

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));