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-rw-r--r--typescript.html.markdown7
1 files changed, 7 insertions, 0 deletions
diff --git a/typescript.html.markdown b/typescript.html.markdown
index db6579e2..9158f123 100644
--- a/typescript.html.markdown
+++ b/typescript.html.markdown
@@ -113,6 +113,13 @@ class Point {
static origin = new Point(0, 0);
}
+// Classes can be explicitly marked as implementing an interface.
+// Any missing properties will then cause an error at compile-time.
+class PointPerson implements Person {
+ name: string
+ move() {}
+}
+
let p1 = new Point(10, 20);
let p2 = new Point(25); //y will be 0