Data commit

Task/Binary-strings/Ruby/binary-strings.rb

@@ -0,0 +1,47 @@
+# string creation
+x = "hello world"
+
+# string destruction
+x = nil
+
+# string assignment with a null byte
+x = "a\0b"
+x.length  # ==> 3
+
+# string comparison
+if x == "hello"
+  puts "equal"
+else
+  puts "not equal"
+end
+y = 'bc'
+if x < y
+  puts "#{x} is lexicographically less than #{y}"
+end
+
+# string cloning
+xx = x.dup
+x == xx       # true, same length and content
+x.equal?(xx)  # false, different objects
+
+# check if empty
+if x.empty?
+  puts "is empty"
+end
+
+# append a byte
+p x << "\07"
+
+# substring
+p xx = x[0..-2]
+x[1,2] = "XYZ"
+p x
+
+# replace bytes
+p y = "hello world".tr("l", "L")
+
+# join strings
+a = "hel"
+b = "lo w"
+c = "orld"
+p d = a + b + c