Question

I need to write a method to create a simple text bar chart given a value and maxvalue. So barchart(4, 10) would return "XXXX------".

It’s obviously trivially simple to just code that, but I’m trying to learn more about ruby string methods.

The nest I could come up with was: if you want, for example, 4/10 (i.e. an output of "XXXX------"),

graph = "".ljust(4, 'X').ljust(10, '-')

But that seems goofy, I suspect there’s a more direct way?

Answer 1

Here’s another way using string multiplication:

 passed = 4
 d = 'X' * passed + '-' * (10 - passed)

Whether or not this is “less goofy” is undecided.