Data commit

Task/Binary-strings/Elixir/binary-strings.elixir

@@ -0,0 +1,55 @@
+# String creation
+x = "hello world"
+
+# String destruction
+x = nil
+
+# String assignment with a null byte
+x = "a\0b"
+IO.inspect x                  #=> <<97, 0, 98>>
+IO.puts String.length(x)      #=> 3
+
+# string comparison
+if x == "hello" do
+  IO.puts "equal"
+else
+  IO.puts "not equal"         #=> not equal
+end
+y = "bc"
+if x < y do
+  IO.puts "#{x} is lexicographically less than #{y}"  #=> a b is lexicographically less than bc
+end
+
+# string cloning
+xx = x
+IO.puts x == xx               #=> true  （same length and content)
+
+# check if empty
+if x=="" do
+  IO.puts "is empty"
+end
+if String.length(x)==0 do
+  IO.puts "is empty"
+end
+
+# append a byte
+IO.puts x <> "\07"            #=> a b 7
+IO.inspect x <> "\07"         #=> <<97, 0, 98, 0, 55>>
+
+# substring
+IO.puts String.slice("elixir", 1..3)          #=> lix
+IO.puts String.slice("elixir", 2, 3)          #=> ixi
+
+# replace bytes
+IO.puts String.replace("a,b,c", ",", "-")     #=> a-b-c
+
+# string interpolation
+a = "abc"
+n = 100
+IO.puts "#{a} : #{n}"         #=> abc : 100
+
+# join strings
+a = "hel"
+b = "lo w"
+c = "orld"
+IO.puts a <> b <> c           #=> hello world