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authorLouis Pilfold <louis@lpil.uk>2024-02-15 12:18:17 +0000
committerLouis Pilfold <louis@lpil.uk>2024-02-19 18:18:04 +0000
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+<p>
+ When functions take several arguments it can be difficult to remember what the
+ arguments are, and what order they are expected in.
+</p>
+<p>
+ To help with this Gleam supports labelled arguments, where function arguments
+ are given an external label in addition to their internal name. These labels
+ are written before the argument name in the function definition.
+</p>
+<p>
+ When labelled arguments are used the order of the arguments does not matter,
+ but all unlabelled arguments must come before labelled arguments.
+</p>
+<p>
+ There is no performance cost to using labelled arguments, it does not allocate
+ a dictionary or perform any other runtime work.
+</p>
+<p>
+ Labels are optional when calling a function, it is up to the programmer to
+ decide what is clearest in their code.
+</p>
+
+