Unique object literal keys- javascript -

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var obj = {"":"empty string", "!":"bang", "hello world":"hello world"}

-fix these lines of code works?

whatever method i've tried, keep coming undefined property name "" or error when calling !.

i'm new coding , not looking answer, maybe push in right direction..so please gentle ,

you must call obj array

console.log( obj [''] ); // "empty string" console.log( obj ['!'] ); // "bang" var x='!'; console.log( obj [x] ); // "bang"

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