Why do we need interpreted languages?

Why do we need an interpreter? The first and vital need of an interpreter is to translate source code from high-level language to machine language. ... Here interpreter comes handy and can cut this huge compilation duration. Interpreters are designed to translate single instruction at a time and execute them immediately.

Why are interpreted languages easier to debug?

Interpreters always handle code line by line so that the individual instructions of each line are read, analyzed and converted for the processor one after another. ... This makes debugging much easier since the line of code containing the bug is immediately identified when the error occurs.