如何使用javascript拆分json中的值？

Question

i have some code json in here.

[ 
    {
      "id": "Node-1",
      "label": "Node-1",
      "image": "img/hosts.png",
      "shape": "image",
      "description": "Node-1:type: OS::Nova::Serverproperties: image: {get_param:image} flavor: {get_param:flavor}"
     },
     {
      "id": "Switch-1",
      "label": "Switch-1",
      "image": "img/switch.png",
      "shape": "image",
      "description": "Switch-1:type: OS::Neutron::Netproperties:   name:Switch-1Switch-1_subnet:"
     }
]

how can i get the "description" value with javascript?

Answer 1

Its an Array of JSON objects so you can access those array objects using index . Read more on JavaScript Array

For the Object properties you can use name of property or you can loop through them using Object.keys or Object.getOwnPropertyNames()

 var x=[ { "id": "Node-1", "label": "Node-1", "image": "img/hosts.png", "shape": "image", "description": "Node-1:type: OS::Nova::Serverproperties: image: {get_param:image} flavor: {get_param:flavor}" }, { "id": "Switch-1", "label": "Switch-1", "image": "img/switch.png", "shape": "image", "description": "Switch-1:type: OS::Neutron::Netproperties: name:Switch-1Switch-1_subnet:" } ] alert(x[0].description)