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