How can I build JavaScript instruction dynamically from parameters?

Question

I want to construct javascript instruction dynamically

the original instruction is :

 var chou = eval('(' + returnResult + ')').attribute;

I want to pass the attribute as variable is it possible?

I have tried :

 var chou = eval('(' + returnResult + ')').eval(baseentity);

but it doesn't work.

Answer 1

I'll be optimistic and assume that returnResult is JSON.

Then you can do

var chou = JSON.parse(returnResult)[baseentity];

If it's not exactly JSON but you trust the source enough to use eval, then you could do

var chou = eval('(' + returnResult + ')')[baseentity];