Getting -- TypeError: Object #<Object> has no method 'toSource'

Command Executed :

  arguments.toSource();

I am getting the below error when I am accessing the arguments in any function to display the arguments.

  TypeError: Object #<Object> has no method 'toSource'

Is arguments is array or not ?

arguments is array-like, but not a full JavaScript Array.

It has no toSource method; see the docs.