javascript - How to access json elements -

i have variable soap looks

{   "soapenv:head":{       "title": "titlename"   },   "soapenv:body":{       "element1": "elementname"   } } 

how can access soapenv:body? having unexpected token : while trying

soap.soapenv:body

since have special char : in key-name, should use this:

soap["soapenv:body"]