Need to Error handling in console.js

[zero1ne]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Performance issue
[x] Feature request
[ ] Documentation issue or request
[ ] Other... Please describe:

Current behavior

If the user mistype the function name when using vvisp console, it prints out "TypeError: Cannot read property 'apply' of undefined" error msg.

Expected behavior

Need to some error handling.

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Environment

vvisp version: 1.0.0


Environment:
- Node version: v11.10.1
- Operating system: OS X 10.14.3

Others: