what is the use of ref() in perl?

Perl provides the ref() function so that you can check the reference type before dereferencing a reference.

1.SCALAR

2.ARRAY,

3.HASH,

4.CODE,

5.REF,

6.GLOB,

7.LVALUE,

8.FORMAT,
9.IO,

10.VSTRING,

 

these are the return values of ref() reference function.

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