how to access variables within the Objects

I'm creating an object with multiple functions.. i.e.: var test = { setA: function(){ console.log(a) } endB: function(){ console.log(a) } } How do I declare variable a so that it can only be accessed in the test object and every function within that the object? and is there anything unique about accessing it than other variables? I know I can declare a global variable but would rather avoid doing that.

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