Implement Collection

src/collection/minOf.ts

@@ -0,0 +1,12 @@
+import {error} from "../util/error";
+
+export function minOf<T>(value: T[], transform: (it: T) => number): number {
+    if (value.length === 0) error();
+    let min = transform(value[0]);
+    for (let index = 1; index < value.length; index++) {
+        const it = value[index];
+        const val = transform(it);
+        if (val < min) min = val;
+    }
+    return min;
+}