diff --git a/src/helpers.js b/src/helpers.js
index 80602e8..9bc512e 100644
--- a/src/helpers.js
+++ b/src/helpers.js
@@ -573,6 +573,9 @@ export function splice(array, startIndex, nb, ...elements) {
   if (nb === undefined) {
     nb = array.length - startIndex;
   }
+  else if (nb === null || Number.isNaN(Number.parseInt(nb))) {
+    nb = 0;
+  }
   nb = Math.max(0, nb);
 
   // Solving startIndex
diff --git a/test/suites/helpers.js b/test/suites/helpers.js
index 6196f5d..043ee0b 100644
--- a/test/suites/helpers.js
+++ b/test/suites/helpers.js
@@ -231,6 +231,16 @@ describe('Helpers', function() {
         assert.deepEqual(splice(array, 2), [0, 1]);
 
         assert.deepEqual(splice(array, -2), [0, 1, 2]);
+
+        assert.deepEqual(splice(array, 2, null), [0, 1, 2, 3, 4]);
+      });
+
+      it('should delete no values when supplying an argument which is not parseable as number', function () {
+        const array = [0, 1, 2, 3, 4];
+
+        assert.deepEqual(splice(array, 2, "a"), [0, 1, 2, 3, 4]);
+
+        assert.deepEqual(splice(array, 2, {}), [0, 1, 2, 3, 4]);
       });
     });
   });