Created
January 21, 2019 05:55
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=begin | |
Ordenar arreglos numéricos y de cadena con Ruby, sort y el operador <=> | |
@author parzibyte | |
=end | |
palabras = ["Ruby", "React", "Rust", "PostgreSQL", "Kotlin"] | |
puts "Palabras sin ordenar: #{palabras}" | |
# Lo mismo que los numéros, por defecto es ascendente | |
palabras_ascendente = palabras.sort | |
puts "Palabras ordenadas de manera ascendente: #{palabras_ascendente}" | |
# ["Kotlin", "PostgreSQL", "React", "Ruby", "Rust"] | |
# Pero igualmente podemos indicar el modo de ordenación; es lo mismo que | |
# arriba con el numérico pero usando <=> el cual devuelve -1, o 0 -1 | |
# dependiendo de la compración de b y a | |
palabras_descendentes = palabras.sort{ |a, b| b <=> a} | |
puts "Palabras ordenadas de manera descendente: #{palabras_descendentes}" | |
# ["Rust", "Ruby", "React", "PostgreSQL", "Kotlin"] |
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