adarrra · September 14, 2016 12:10 · Sep 14, 2016
diff --git a/random_with_step.js b/random_with_step.js
@@ -0,0 +1,17 @@
+function randomWithStep(min, max, step) {
+    let prev;
+    return function () {
+        let current;
+        function countFormula() {
+            current = min + (step * Math.floor(Math.random()*(max-min)/step));
+        }
+        do {
+            countFormula();
+        }
+        while (prev === current);
+        prev = current;
+        return current;
+    };
+}
+let randomNumber = randomWithStep(10, 80, 10);
+randomNumber();