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Attributes are refering to additional information of an object. Properties are describing the characteristics of an object. Most people use these two words as synonyms

i would use for loop, for..in, for each..in, map, reduce etc.

the event loop continuously checks the call stack to see if there’s any function that needs to run. While doing so, it adds any function call it finds to the call stack and executes each one in order.

a job queue is a queue of things to do (usually stored persistant) and a call stack is a stack of routines. A job would have variables assigned to it, and a call stack would be the abstract implementation.

Es6 allows the developers to instantiate objects using the new operator. Es5 function focus on how the objects are instantiated.