Order 

LYAHFGG:

Ord is for types that have an ordering. Ord covers all the standard comparing functions such as >, <, >= and <=.

Cats’ equivalent for the Ord typeclass is Order.

// plain Scala
1 > 2.0
// res0: Boolean = false

import cats._, cats.syntax.all._

1 compare 2.0
// error: type mismatch;
//  found   : Double(2.0)
//  required: Int
// 1.0 compare 2.0
//             ^^^

import cats._, cats.syntax.all._

1.0 compare 2.0
// res2: Int = -1

1.0 max 2.0
// res3: Double = 2.0

Order enables compare syntax which returns Int: negative, zero, or positive. It also enables min and max operators. Similar to Eq, comparing Int and Double fails compilation.