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- delete uninitialized variable globalX: false
- globalX : undefined
- delete explicitVar : false
- value explicitVar : 10
- delete implicitVar : true
- value implicitVar : Exception
- delete explicitVarInEval : true
- value explicitVarInEval : Exception
- delete implicitVarInEval : true
- value implicitVarInEval : Exception
- a[1] = 200
- delete a[1] : true
- a[1] = undefined
- a[2] = 100
- delete a[2] : true
- a[2] = 100
- o.x = 1
- delete o.x : true
- o.x = undefined
- delete o.x (again): true
- o.z = undefined
- delete o.z (non existing property): true
- o.z = undefined
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