set

Use set when you need a collection of unique values with membership checks.

import "std:set"

Example

import "std:set"

set names = set()
names.add("ada")
log names.contains("ada")

API reference

Set values

Method	Returns	Notes
value.add(v: any)	*Set	Adds a comparable value.
value.delete(v: any)	error	Deletes through the same guard.
value.contains(v: any)	boolean	Checks membership through the same guard.
value.size()	number	Returns the number of stored values.
value.clear()	void	Clears all stored values.
value.toArr()	array	Converts the value to an array.

Notes

• Prefer import "std:set"; the older import "osl/set" spelling remains supported.

Composite and cyclic values are compared safely. Sets synchronize concurrent reads and writes.