Difference between = , ==, === in javascript Comparators java Patch and put difference Jsonpath in rest assured Get different requests from outside and use as tokens api testing Hashmap hashset Linked list array list Streams java Over loading and over riding Polymorphism Async await promise Xpaths Serialization vs deserialization Java streams api map reduce sort okke Put needs entire data to be sent as payload to be updated whereas patch will update only neccessary fields without sending whole record in payload. In JS , = is for assignment , == compares without considering data type , === compares by checking data type