Escaping name of JavaScript object in node console

Question

I am simply trying to access an object which name starts with ':' from the Javascript console.

Here is how the object looks like and I want to access escrow:

{
   'compiled': 
   {
      'contracts':
       { 
          ':escrow':   
           { assembly: { 
              '.code': [Array], 
              '.data': [Object] 
           }
       }
    }
}

Here is how I am trying, but always get a undefined error message:

compiled.contracts.escrow

You're getting `undefined` because `"escrow"` is clearly not the same as `":escrow"`. Use `[ ]`: `compiled.contracts[":escrow"]` — Pointy, Feb 05 '18 at 14:36
I'm sure there's a duplicate question out there, if not dozens of them. — Pointy, Feb 05 '18 at 14:38

score 1 · Accepted Answer · answered Feb 05 '18 at 14:39

When a property name is not a valid identifier (something that would work as a variable name), the property must be accessed with the [ ] operator:

compiled.contracts[":escrow"]

The [ ] operator otherwise does exactly the same thing as . in chain of object property references.

Escaping name of JavaScript object in node console

1 Answers1