diff --git a/.eslintrc.js b/.eslintrc.js
index 862af50..20597ac 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -19,16 +19,13 @@ module.exports = {
     'dot-notation': 'off',
     'import/first': 'off',
     'no-mixed-operators': 'off',
-    'no-sequences': 'off',
     'no-undef': 'off',
     'no-unneeded-ternary': 'off',
     'no-unused-expressions': 'off',
     'no-unused-vars': 'off',
-    'no-void': 'off',
     'node/no-deprecated-api': 'off',
     'one-var': 'off',
     'prefer-const': 'off',
-    'quote-props': 'off',
     eqeqeq: 'off',
     semi: 'off'
   }
diff --git a/src/modules/hero.ts b/src/modules/hero.ts
index a565d4d..0828088 100755
--- a/src/modules/hero.ts
+++ b/src/modules/hero.ts
@@ -83,7 +83,7 @@ function destroy (vnode: VNode): void {
     (vnode as any).isTextNode = isTextElement(elm as Element | Text); // is this a text node?
     (vnode as any).boundingRect = (elm as Element).getBoundingClientRect(); // save the bounding rectangle to a new property on the vnode
     (vnode as any).textRect = (vnode as any).isTextNode ? getTextNodeRect((elm as Element).childNodes[0] as Text) : null; // save bounding rect of inner text node
-    var computedStyle = window.getComputedStyle(elm as Element, void 0); // get current styles (includes inherited properties)
+    var computedStyle = window.getComputedStyle(elm as Element, undefined); // get current styles (includes inherited properties)
     (vnode as any).savedStyle = JSON.parse(JSON.stringify(computedStyle)); // save a copy of computed style values
     removed[hero.id] = vnode;
   }
@@ -104,7 +104,7 @@ function post () {
     if (oldVnode) {
       isTextNode = (oldVnode as any).isTextNode && isTextElement(newElm); // Are old & new both text?
       newStyle = (newElm as HTMLElement).style;
-      newComputedStyle = window.getComputedStyle(newElm, void 0); // get full computed style for new element
+      newComputedStyle = window.getComputedStyle(newElm, undefined); // get full computed style for new element
       oldElm = oldVnode.elm as Element;
       oldStyle = (oldElm as HTMLElement).style;
       // Overall element bounding boxes
diff --git a/src/test/core.ts b/src/test/core.ts
index fd2b36d..3f0a618 100644
--- a/src/test/core.ts
+++ b/src/test/core.ts
@@ -372,7 +372,7 @@ describe('snabbdom', function () {
         elm.appendChild(text);
         var vnode = toVNode(elm, domApi);
         assert.equal(vnode.sel, 'x-div#id.class.other');
-        assert.deepEqual(vnode.data, { attrs: { 'data': 'value' } });
+        assert.deepEqual(vnode.data, { attrs: { data: 'value' } });
         const children = vnode.children as [VNode, VNode]
         assert.equal(children[0].sel, 'x-h2#hx');
         assert.deepEqual(children[0].data, { attrs: { 'data-env': 'xyz' } });
diff --git a/src/test/eventlisteners.ts b/src/test/eventlisteners.ts
index f709d24..19e1833 100644
--- a/src/test/eventlisteners.ts
+++ b/src/test/eventlisteners.ts
@@ -138,7 +138,7 @@ describe('event listeners', function () {
     assert.equal(2, result.length);
     assert.equal(vnode1, result[0]);
     assert.equal(vnode1, result[1]);
-  }),
+  });
   it('access to virtual node in event handler with argument', function () {
     var result: Array<VNode | Event> = [];
     function clicked (arg: number, ev: Event, vnode: VNode) { result.push(this); result.push(vnode); }
@@ -150,7 +150,7 @@ describe('event listeners', function () {
     assert.equal(2, result.length);
     assert.equal(vnode1, result[0]);
     assert.equal(vnode1, result[1]);
-  }),
+  });
   it('access to virtual node in event handler with arguments', function () {
     var result: Array<VNode | Event> = [];
     function clicked (arg1: number, arg2: string, ev: Event, vnode: VNode) { result.push(this); result.push(vnode); }