diff --git a/src/ol/renderer/webgl/Layer.js b/src/ol/renderer/webgl/Layer.js
index 67792ccd7e..308be68529 100644
--- a/src/ol/renderer/webgl/Layer.js
+++ b/src/ol/renderer/webgl/Layer.js
@@ -83,9 +83,11 @@ export function pushFeatureInBuffer(vertexBuffer, indexBuffer, geojsonFeature, o
   if (!geojsonFeature.geometry) {
     return;
   }
-  switch(geojsonFeature.geometry.type) {
-    case "Point":
-      pushPointGeomInBuffer_(vertexBuffer, indexBuffer, geojsonFeature, opt_attributes)
+  switch (geojsonFeature.geometry.type) {
+    case 'Point':
+      pushPointGeomInBuffer_(vertexBuffer, indexBuffer, geojsonFeature, opt_attributes);
+      return;
+    default:
       return;
   }
 }
@@ -94,10 +96,10 @@ const tmpArray_ = [];
 
 /**
  * Pushes a quad (two triangles) based on a point geometry
- * @param vertexBuffer
- * @param indexBuffer
- * @param geojsonFeature
- * @param opt_attributes
+ * @param {import("../../webgl/Buffer").default} vertexBuffer WebGL buffer
+ * @param {import("../../webgl/Buffer").default} indexBuffer WebGL buffer
+ * @param {import("../../format/GeoJSON").GeoJSONFeature} geojsonFeature Feature
+ * @param {Array<string>} [opt_attributes] Custom attributes
  * @private
  */
 function pushPointGeomInBuffer_(vertexBuffer, indexBuffer, geojsonFeature, opt_attributes) {
diff --git a/src/ol/renderer/webgl/PointsLayer.js b/src/ol/renderer/webgl/PointsLayer.js
index fc08b266d8..55c795e6e4 100644
--- a/src/ol/renderer/webgl/PointsLayer.js
+++ b/src/ol/renderer/webgl/PointsLayer.js
@@ -12,7 +12,6 @@ import ViewHint from '../../ViewHint';
 import {createEmpty, equals} from '../../extent';
 import {
   create as createTransform,
-  reset as resetTransform,
   makeInverse as makeInverseTransform,
   multiply as multiplyTransform,
   apply as applyTransform
@@ -350,7 +349,7 @@ class WebGLPointsLayerRenderer extends WebGLLayerRenderer {
 
   /**
    * Rebuild internal webgl buffers based on current view extent; costly, should not be called too much
-   * @param {import("../../PluggableMap.js").FrameState} frameState
+   * @param {import("../../PluggableMap").FrameState} frameState Frame state.
    * @private
    */
   rebuildBuffers_(frameState) {
diff --git a/test/spec/ol/renderer/webgl/layer.test.js b/test/spec/ol/renderer/webgl/layer.test.js
index 59e81ae1db..427c7d56e1 100644
--- a/test/spec/ol/renderer/webgl/layer.test.js
+++ b/test/spec/ol/renderer/webgl/layer.test.js
@@ -9,18 +9,18 @@ describe('ol.renderer.webgl.Layer', function() {
 
     let target;
 
-    beforeEach(function () {
+    beforeEach(function() {
       target = document.createElement('div');
       target.style.width = '256px';
       target.style.height = '256px';
       document.body.appendChild(target);
     });
 
-    afterEach(function () {
+    afterEach(function() {
       document.body.removeChild(target);
     });
 
-    it('creates a new instance', function () {
+    it('creates a new instance', function() {
       const layer = new Layer({});
       const renderer = new WebGLLayerRenderer(layer);
       expect(renderer).to.be.a(WebGLLayerRenderer);
@@ -31,17 +31,17 @@ describe('ol.renderer.webgl.Layer', function() {
   describe('pushFeatureInBuffer', function() {
     let vertexBuffer, indexBuffer;
 
-    beforeEach(function () {
+    beforeEach(function() {
       vertexBuffer = new WebGLArrayBuffer();
       indexBuffer = new WebGLArrayBuffer();
     });
 
     it('does nothing if the feature has no geometry', function() {
       const feature = {
-        type: "Feature",
-        id: "AFG",
+        type: 'Feature',
+        id: 'AFG',
         properties: {
-          color:[0.5, 1, 0.2, 0.7],
+          color: [0.5, 1, 0.2, 0.7],
           size: 3
         },
         geometry: null
@@ -53,15 +53,15 @@ describe('ol.renderer.webgl.Layer', function() {
 
     it('adds two triangles with the correct attributes for a point geometry', function() {
       const feature = {
-        type: "Feature",
-        id: "AFG",
+        type: 'Feature',
+        id: 'AFG',
         properties: {
-          color:[0.5, 1, 0.2, 0.7],
+          color: [0.5, 1, 0.2, 0.7],
           size: 3
         },
         geometry: {
-          type: "Point",
-          coordinates: [ -75, 47 ]
+          type: 'Point',
+          coordinates: [-75, 47]
         }
       };
       const attributePerVertex = 12;
@@ -72,15 +72,15 @@ describe('ol.renderer.webgl.Layer', function() {
 
     it('correctly sets indices & coordinates for several features', function() {
       const feature = {
-        type: "Feature",
-        id: "AFG",
+        type: 'Feature',
+        id: 'AFG',
         properties: {
-          color:[0.5, 1, 0.2, 0.7],
+          color: [0.5, 1, 0.2, 0.7],
           size: 3
         },
         geometry: {
-          type: "Point",
-          coordinates: [ -75, 47 ]
+          type: 'Point',
+          coordinates: [-75, 47]
         }
       };
       const attributePerVertex = 12;
@@ -110,8 +110,8 @@ describe('ol.renderer.webgl.Layer', function() {
 
     it('correctly adds custom attributes', function() {
       const feature = {
-        type: "Feature",
-        id: "AFG",
+        type: 'Feature',
+        id: 'AFG',
         properties: {
           color: [0.5, 1, 0.2, 0.7],
           custom: 4,
@@ -120,8 +120,8 @@ describe('ol.renderer.webgl.Layer', function() {
           customString2: 'abc'
         },
         geometry: {
-          type: "Point",
-          coordinates: [ -75, 47 ]
+          type: 'Point',
+          coordinates: [-75, 47]
         }
       };
       const attributePerVertex = 16;
diff --git a/test/spec/ol/renderer/webgl/pointslayer.test.js b/test/spec/ol/renderer/webgl/pointslayer.test.js
index 367fd2696f..b85048b789 100644
--- a/test/spec/ol/renderer/webgl/pointslayer.test.js
+++ b/test/spec/ol/renderer/webgl/pointslayer.test.js
@@ -15,18 +15,18 @@ describe('ol.renderer.webgl.PointsLayer', function() {
 
     let target;
 
-    beforeEach(function () {
+    beforeEach(function() {
       target = document.createElement('div');
       target.style.width = '256px';
       target.style.height = '256px';
       document.body.appendChild(target);
     });
 
-    afterEach(function () {
+    afterEach(function() {
       document.body.removeChild(target);
     });
 
-    it('creates a new instance', function () {
+    it('creates a new instance', function() {
       const layer = new VectorLayer({
         source: new VectorSource()
       });
diff --git a/test/spec/ol/webgl/helper.test.js b/test/spec/ol/webgl/helper.test.js
index 7fad2ccda4..b6a75761bd 100644
--- a/test/spec/ol/webgl/helper.test.js
+++ b/test/spec/ol/webgl/helper.test.js
@@ -1,7 +1,6 @@
 import WebGLHelper from '../../../../src/ol/webgl/Helper';
 import {
   create as createTransform,
-  multiply,
   rotate as rotateTransform,
   scale as scaleTransform, translate as translateTransform
 } from '../../../../src/ol/transform';
@@ -203,7 +202,7 @@ describe('ol.webgl.WebGLHelper', function() {
             resolution: 2,
             center: [10, 20]
           }
-        }
+        };
       });
 
       it('gives out the correct transform', function() {