Going somewhere.

frontend/util.js

@@ -0,0 +1,12 @@
+export function range(min, max=undefined){
+    if(max === undefined){
+        max = min;
+        min = 0;
+    }
+    const ret = [];
+    while(min < max){
+        ret.push(min);
+        min ++;
+    }
+    return ret
+}