Pyramid Generator Challenge!

fight.md

Scala should have a shot at this classic nerd fight.

Concise version:

(1 to 5).map("*"*).foreach(println)

Uses language features:

1. Implicit conversion to wrap values with decorator classes. (These add the to and * functions to the 1 and "*" literals respectively.)
2. Placeholder parameters allowing partial application of functions passed as arguments.

A desugared version of that line would be:

(1 to 5) map { i => "*" * i } foreach { s => println(s) }

Using language features:

1. The first feature from the previous snippet.
2. Function literals using the => syntax sugar, which expands to Function1[-T1, R].

Ruby:

puts (1..5).map { |i| '*' * i }

A JS/ES2015+ attempt:

[...Array(5).keys()].forEach(i => console.warn(''.padEnd(i+1, '*')))