bohford · December 1, 2011 08:10
diff --git a/stupid_jruby_tricks.rb b/stupid_jruby_tricks.rb
 # JRuby 1.6.5 + Java 6

 # 01 - Small Array Instantiation

 # A new, empty array preallocates memory for 16 elements
 # An array that starts non-empty and is subsequently cleared will only have memory allocated for one element
 # Ergo, if you know your array will stay small, define with [nil].clear 

 empty_array = []            # 152 bytes
 cleared_array = [nil].clear # 32 bytes
	# JRuby 1.6.5 + Java 6

	# 01 - Small Array Instantiation

	# A new, empty array preallocates memory for 16 elements
	# An array that starts non-empty and is subsequently cleared will only have memory allocated for one element
	# Ergo, if you know your array will stay small, define with [nil].clear

	empty_array = [] # 152 bytes
	cleared_array = [nil].clear # 32 bytes