extension

Complete extension functions example

Use an extension when behavior conceptually belongs beside a type but you do not own or should not expand the type declaration.

cpu · language · type checked

thing Point
{
    int x
    int y
    Point(int x, int y) { this.x = x this.y = y }
}
Magnitude(Point extension value, int offset = 0) -> int
{
    return value.x + value.y + offset
}
Point point = Point(1, 5)
Console.Log(Text.From(point.Magnitude(offset: 7)))

manifestVersion = "2"
package = "api.example.word__extension"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"