Javascript multiple “try”s

Question

We all know the basic escaping mechanism in JS:

try {
    ...
}
catch(err) {
    ..
}

I have a JSON data in which I want to check if a lead

Answer 1

Instead of do this in using one try-catch block only. As we know when we will get type error in javascript when access something that does not exist.

See the below code snippet.

function getName(isFullName='true'){

  try{
     if(isFullName)
       name = lead['Details']['Name']['Full'];       
     else
       name = lead['Details']['Name']['First'] + " " + lead['Details']['Name']['Last'];       
     }
   catch(e){
     if (e instanceof TypeError && isFullName) 
         getName(false);
     name = 'No name';   
    }
} 

In case name is full name is coming undefined then, we need to add an extra if block to check for the undefined case.