How to get a substring of text?

Question

I have text with length ~700. How do I get only ~30 of its first characters?

Answer 1

if you need it in rails you can use first (source code)

'1234567890'.first(5) # => "12345"

there is also last (source code)

'1234567890'.last(2) # => "90"

alternatively check from/to (source code):

"hello".from(1).to(-2) # => "ell"