1 min read TIL

TIL: Incrementing Alphanumerics

Incrementing aphanumerics

Strings have a built in next method.

'1'.next
"2"

'9'.next'
"10"

It works on characters too:

'a'.next
"b"

'z'.next
"aa"

It's cleverer than it looks at first pass too:

'aaz'.next
"aba"

'abc99'.next
"abd01"

You might also like...

Dec
07
Ruby Matrix

Ruby Matrix

Using the Matrix class in place of 2d arrays
1 min read
Dec
05
TSort: Ruby's built-in topological sort algorithm

TSort: Ruby's built-in topological sort algorithm

Sorting directed graphs
1 min read
Jul
26
Non-Blocking Methods Ruby

Non-Blocking Methods Ruby

Writing Ruby methods that return immediately on blocking operations
3 min read
Mar
06
Ruby, Async and HTTP

Ruby, Async and HTTP

Using async-http with HTTP/2
1 min read
Dec
08
Ruby's Anonymous Parameter Forwarding

Ruby's Anonymous Parameter Forwarding

Summarising argument forwarding
2 min read

Member discussion