C#•13mo ago

✅ Split Lines into Array Elements

I've got a list of common English words in the format

word1
word2
word3
word4

word1
word2
word3
word4

And so forth. How can I split this into an array of format `string[] arr = {"word1", "word2", "word3", "word4"}. I imagine this would be done with .Split() but it's not working for me.

21 Replies

SinFluxx•13mo ago

When you say it's in that format, you mean it's a load of words, 1 per line, in some file and you're reading them in?

alex•13mo ago

what have u tried, what error did u encounter?

TheRanger•13mo ago

.Split definitely works u are probably using it wrong

nohopestage•13mo ago

By default Split uses a whitespace as a delimiter. Pass Environment.NewLine as an argument Assuming each word is split by a new line

cap5lut•13mo ago

Environment.NewLine is usually not enough as different operating systems/applications/user settings can affect the actual new line sequence

MODiX•13mo ago

AdiZ

REPL Result: Failure

string s = 
"
abc
def
ghi
jkl
";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

string s = 
"
abc
def
ghi
jkl
";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

Exception: CompilationErrorException

- Newline in constant
- ; expected
- ; expected
- ; expected
- Newline in constant
- ; expected
- The type or namespace name 'abc' could not be found (are you missing a using directive or an assembly reference?)
- The type or namespace name 'ghi' could not be found (are you missing a using directive or an assembly reference?)

- Newline in constant
- ; expected
- ; expected
- ; expected
- Newline in constant
- ; expected
- The type or namespace name 'abc' could not be found (are you missing a using directive or an assembly reference?)
- The type or namespace name 'ghi' could not be found (are you missing a using directive or an assembly reference?)

Compile: 699.045ms | Execution: 0.000ms | React with ❌ to remove this embed.

MODiX•13mo ago

AdiZ

REPL Result: Failure

string s = "abc
def
ghi
jkl
";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

string s = "abc
def
ghi
jkl
";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

Exception: CompilationErrorException

- Newline in constant
- ; expected
- ; expected
- ; expected
- Newline in constant
- ; expected
- The type or namespace name 'def' could not be found (are you missing a using directive or an assembly reference?)
- The name 'jkl' does not exist in the current context

- Newline in constant
- ; expected
- ; expected
- ; expected
- Newline in constant
- ; expected
- The type or namespace name 'def' could not be found (are you missing a using directive or an assembly reference?)
- The name 'jkl' does not exist in the current context

Compile: 501.971ms | Execution: 0.000ms | React with ❌ to remove this embed.

MODiX•13mo ago

AdiZ

REPL Result: Success

string s = "abc\ndef\nghi\njkl\n";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

string s = "abc\ndef\nghi\njkl\n";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

Console Output

abc
def
ghi
jkl

abc
def
ghi
jkl

Compile: 611.380ms | Execution: 47.155ms | React with ❌ to remove this embed.

AdiZOP•13mo ago

Oh My bad guys.

alex•13mo ago

ngl i didnt know it splits on newlines by default

PixxelKick•13mo ago

If you are reading this from a file, btw, there's a handy existing method you can use that will handle this for you. File.ReadLinesAsync(string path) returns an async enumerable of strings, 1 per line https://learn.microsoft.com/en-us/dotnet/api/system.io.file.readlinesasync?view=net-7.0

File.ReadLinesAsync Method (System.IO)

Asynchronously reads the lines of a file.

PixxelKick•13mo ago

You will want to use await foreach for the IAsyncEnumerable it returns, if you dont want to dig into learning how to use await foreach though you can use the synchronous version of the method, File.ReadLines(string path)

Jimmacle•13mo ago

triple quotes for multiline string literals, fyi

var x = """
my string
""";

var x = """
my string
""";

MODiX•13mo ago

TheRanger

REPL Result: Success

string s = @"abc
def
ghi
jkl
";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

string s = @"abc
def
ghi
jkl
";

foreach (string word in s.Split())
{
Console.WriteLine(word);
}

Console Output

abc
def
ghi
jkl

abc
def
ghi
jkl

Compile: 614.818ms | Execution: 91.826ms | React with ❌ to remove this embed.

Jimmacle•13mo ago

or that

TheRanger•13mo ago

wait why """ exists if @ exists? 🤔

Jimmacle•13mo ago

triple quote version is a lot nicer when you have indentation because it aligns the "base" indentation of the string with the indentation of the end """

MODiX•13mo ago

Jimmacle

REPL Result: Success

Console.WriteLine("""
        super indented
        """)

Console.WriteLine("""
        super indented
        """)

Console Output

super indented

super indented

Compile: 511.960ms | Execution: 81.608ms | React with ❌ to remove this embed.

MODiX•13mo ago

TheRanger

REPL Result: Success

Console.WriteLine(@"
        super nintendo
        ")

Console.WriteLine(@"
        super nintendo
        ")

Console Output

        super nintendo

        super nintendo

Compile: 564.989ms | Execution: 38.691ms | React with ❌ to remove this embed.

TheRanger•13mo ago

cap5lut•13mo ago

well, thats just partially correct

Split is used to break a delimited string into substrings. You can use either a character array or a string array to specify zero or more delimiting characters or strings. If no delimiting characters are specified, the string is split at white-space characters.

line breaks just are whitespaces as well, just like space and tab

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✅ Split Lines into Array Elements