使用变量调用 json object 点表示法

Question

Hi i have a json object to access the path is
data.Application.Exabeam

const target = data.Application.Exabeam

I have trouble, I would like to replace the "Exabeam" to be referenced by a variable

I tried to add a variable as follows

var casetypesession = sessionStorage.getItem("homepageclicksession");

a) const target = data.Application.casetypesession; (dosn't work because there is no casetypesession in my json object

b) const target=data.Applications.casetypesession.valueOf(); (dosn't work, casetypesession is not even recognized in the variable in the dot notation)

Answer 1

The syntax for accessing the property of an object is:

objectName.property         // person.age

or

objectName["property"]      // person["age"]

or

objectName[expression]      // x = "age"; person[x]

See this reference for details.

Which in your case translates to something like this:

const target = data.Applications[casetypesession]

Answer 2

My own mistake, did not specify the array before the exabeam portion!

target=data.Applications[0][casetypesession];