Puppet Function: union

Defined in:
vendor_modules/stdlib/lib/puppet/parser/functions/union.rb
Function type:
Ruby 3.x API

Summary

This function returns a union of two or more arrays.

Overview

union() ⇒ Any

Examples:

*Usage*


union(["a","b","c"],["b","c","d"])
Would return: ["a","b","c","d"]

Returns:

  • (Any) —

    a unionized array of two or more arrays



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# File 'vendor_modules/stdlib/lib/puppet/parser/functions/union.rb', line 7

newfunction(:union, type: :rvalue, doc: <<-DOC
  @summary
    This function returns a union of two or more arrays.

  @return
    a unionized array of two or more arrays
  @example **Usage**

    union(["a","b","c"],["b","c","d"])
    Would return: ["a","b","c","d"]
  DOC
) do |arguments|
  # Check that 2 or more arguments have been given ...
  raise(Puppet::ParseError, "union(): Wrong number of arguments given (#{arguments.size} for < 2)") if arguments.size < 2

  arguments.each do |argument|
    raise(Puppet::ParseError, 'union(): Every parameter must be an array') unless argument.is_a?(Array)
  end

  arguments.reduce(:|)
end