Question

what do you mean by pure and impure methods​

Answer 1

Explanation:

Pure function takes place in Call by Value. Impure function takes place in Call by Reference. In pure function it doesn't modify the external variable/data outside the scope and results the same output given in the same input. In impure function it mutates data/variable outside it's lexical scope.

Hope this helps..

Answer 2

Explanation:

Pure function takes place in Call by Value. Impure function takes place in Call by Reference. In pure function it doesn't modify the external variable/data outside the scope and results the same output given in the same input. In impure function it mutates data/variable outside it's lexical scope Hope this helps..