Clojure - StructMaps

StructMaps are used for creating structures in Clojure. For example, if you wanted to create a structure which comprised of an Employee Name and Employeeid, you can do that with StructMaps.
The following operations are possible in Clojure with regards to StructMaps.

S.No.	Operations & Description
1	defstruct This function is used for defining the structure which is required.
2	struct This function is used to define a structure object of the type, which is created by the defstruct operation.
3	struct-map This function is used to specifically assign values to key values by explicitly defining which values get assigned to which keys in the structure.
4	Accessing Individual Fields Individual fields of the structure can be accessed by accessing the keys along with the structure object.
5	Immutable Nature By default structures are also immutable, so if we try to change the value of a particular key, it will not change.
6	Adding a New Key to the Structure Since structures are immutable, the only way that another key can be added to the structure is via the creation of a new structure. An example on how this can be achieved is shown in the following program.

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