String expressions
Literal​
Creates a new string value.
"valid"
Addition/concatenation​
An addition concatenates the strings. The result is a string containing the characters of both strings.
"foo" + "bar"
// "foobar"
tip
The concatenation is only available for string values. For other types, you can use the string() function to convert the value into a string first.
"order-" + string(123)