shuffle

  • We can shuffle an array in Ruby using a combination of Enumberable#sort_by and Kernel#rand. It is important to note that the original array is modified by PHP’s shuffle function, but is not modified in the Ruby version.

    PHP

    $fruit = array('apple', 'banana', 'kiwi', 'lime');
shuffle($fruit);
var_export($fruit);
// array(0 => 'kiwi', 1 => 'banana', 2 => 'lime', 3 => 'apple')

    Ruby

    fruit = ["apple", "banana", "kiwi", "lime"]
result fruit.sort_by { rand }
p result
# => ["lime", "kiwi", "apple", "banana"]

    see also

← sha1_file sizeof →

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