Guys need help here

Question

I was trying to modify an interpolation search for easy understanding.
Below the embedded code.
In line 13 of the code we have highend==lowend.
Will this condition ever become true or on what condition highend==lowend.
In line 32. Line 32 will return -2 if and only iff all the conditions between line 8 to 31 is false... Am i right.
https://code.sololearn.com/cEd5bPq65K54/?ref=app

Answer 1

1) yes, line 13 become true if array .length =1
2)No ,while loop can't ended if array have a searching value. -2 will returned at the end while loop , and it will mean that item not found