### Home Classes Methods

### In Files

- lib/rbot/core/utils/extends.rb

### Parent

Object

### Methods

- #delete_one
- #pick_one
- #shuffle
- #shuffle!

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No matching classes.

# Array

Extensions to the Array class

### Public Instance Methods

delete_one(val=nil) click to toggle source

This method returns a given element from the array, deleting it from the array itself. The method returns nil if the element couldn't be found.

If nil is specified, a random element is returned and deleted.

    # File lib/rbot/core/utils/extends.rb, line 100
    def delete_one(val=nil)
      return nil if self.empty?
      if val.nil?
        index = rand(self.length)
      else
        index = self.index(val)
        return nil unless index
      end
      self.delete_at(index)
    end

pick_one() click to toggle source

This method returns a random element from the array, or nil if the array is empty

    # File lib/rbot/core/utils/extends.rb, line 90
    def pick_one
      return nil if self.empty?
      self[rand(self.length)]
    end

shuffle() click to toggle source

    # File lib/rbot/core/utils/extends.rb, line 116
    def shuffle
      sort_by { rand }
    end

shuffle!() click to toggle source

    # File lib/rbot/core/utils/extends.rb, line 123
    def shuffle!
      replace shuffle
    end

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