Functions
This page documents how to define custom functions, however EdgeDB provides a large library of built-in functions and operators. These are documented in Standard Library.
Functions are ways to transform one set of data into another.
User-defined Functions
It is also possible to define custom functions. For example, consider
a function that adds an exclamation mark '!' at the end of the
string:
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function exclamation(word: str) -> str
using (word ++ '!');This function accepts a str as an argument and produces a
str as output as well.
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test>
select exclamation({'Hello', 'World'});{'Hello!', 'World!'}