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 1)Set vs Map A Set is a collection dataset that needs to be composed of unique values, where a Map is when you have pairs of associated data when we map the keys to the value.13-Dec-2020 https://osgoodgunawan.medium.com/map-vs-set-vs-object-in-javascript-7345b455afcd#:~:text=The%20difference%20between%20Map%20and%20Set,the%20keys%20to%20the%20value. 2)Versioning in API 4)Role base access 5)https status code for 111,333 series 1xx informational response  – the request was received, continuing process 2xx successful  – the request was successfully received, understood, and accepted 3xx redirection  – further action needs to be taken in order to complete the request This and all future requests should be directed to the given  URI . s 4xx client error  – the request contains bad syntax or cannot be fulfilled 5xx server error  – the server failed to fulfil an apparently valid request 6)Types of execution context global vs local 7)sequilze and kex librarie...