Strings

You can convert a number to a string using the ToString method.

int numberInt = 5;
string numberString = numberInt.ToString();

You can interpolate values into strings by prepending the strings with a $ dollar sign and including the interpolated values inside {} curly brackets.

var name = "Berrylin";
var age = 51;
var message = $"My name is {name} and I am {age} years old."
// => "My name is Berrylin and I am 51 years old."

You can trim a match characters from the end of a string using the TrimEnd method which takes an array or splat list of chars and matches any possible combination of those characters to the end of the string until it reaches a character not included. If nothing matches it will return the original string unchanged.

"XgbXg".TrimEnd('g'); // => "XgbX"
"XgbXgggg".TrimEnd('g'); // => "XgbX"
"XgbXgb".TrimEnd('b', 'g'); // => "XgbX"
"XgbXgbgbbggbgbgg".TrimEnd('b', 'g'); // => "XgbX"
"XgbXg".TrimEnd('b'); // => "XgbXg" (Unchanged)

You can match a pattern to the end of a string using the EndsWith method.

"some/path/about/".EndsWith("about/"); // => true
"some/path/about/".EndsWith("wabout/"); // => false

Multiline string literals

You can create a multiline string by using a @ symbol before a string literal. This allows you to create multiline strings that mirror text files. The @ strings also auto escape special characters like a \ so they don’t need to be manually escaped.

var x = @"
This is a lovely
Multiline string literal
And a string haiku
";

You can add " double quote characters in a multi-line string by using a "" double double quote.

var x = @"
{
    ""data"": ""test""
}
";

You can join an array of elements by a character using the Join method on string. This takes a string that will join the array and then the array to be joined.

var x = new string[] {"a", "b", "c"};
string.Join("-", x); // => a-b-c