Angular 4-通过Key从JSON获取值

Question

I want to get the value by the key of this json. The key is description and i want it in my console.log, i don't really get how to get this value, the filtering before worked fine.

{
    "id": "149",
    "description": "Try"
}

Thanks!

Answer 1

First You need to parse it using JSON.parse. Then using . or [] you can access. For Ex:-

var a = '{
    "id": "149",
    "description": "Try"
}'

b = JSON.parse(a)

b['description'] or b.description FOr more reference you can study here

Answer 2

 const dummy = { id : '1', description : 'Wow awesome' }; console.log(dummy.description); //------------------------------------- const descData = dummy.description; console.log(descData); 

variableName['description'] or variableName.description