diff --git a/src/ol/format/WMTSCapabilities.js b/src/ol/format/WMTSCapabilities.js
index 0a07a3e4f9..db2a1b0922 100644
--- a/src/ol/format/WMTSCapabilities.js
+++ b/src/ol/format/WMTSCapabilities.js
@@ -44,7 +44,7 @@ const PARSERS = makeStructureNS(
  * @classdesc
  * Format for reading WMTS capabilities data.
  *
-  * @api
+ * @api
  */
 class WMTSCapabilities extends XML {
   constructor() {
diff --git a/src/ol/geom/SimpleGeometry.js b/src/ol/geom/SimpleGeometry.js
index 3918b393d3..f3210b7015 100644
--- a/src/ol/geom/SimpleGeometry.js
+++ b/src/ol/geom/SimpleGeometry.js
@@ -146,7 +146,7 @@ class SimpleGeometry extends Geometry {
   /**
    * @param {GeometryLayout} layout Layout.
    * @param {Array<number>} flatCoordinates Flat coordinates.
-    */
+   */
   setFlatCoordinates(layout, flatCoordinates) {
     this.stride = getStrideForLayout(layout);
     this.layout = layout;
diff --git a/src/ol/layer/Base.js b/src/ol/layer/Base.js
index 7ef8016776..b9a4807f0a 100644
--- a/src/ol/layer/Base.js
+++ b/src/ol/layer/Base.js
@@ -43,8 +43,8 @@ class BaseLayer extends BaseObject {
     super();
 
     /**
-    * @type {Object<string, *>}
-    */
+     * @type {Object<string, *>}
+     */
     const properties = assign({}, options);
     properties[LayerProperty.OPACITY] =
        options.opacity !== undefined ? options.opacity : 1;
@@ -59,34 +59,34 @@ class BaseLayer extends BaseObject {
     this.setProperties(properties);
 
     /**
-    * @type {import("./Layer.js").State}
-    * @private
-    */
+     * @type {import("./Layer.js").State}
+     * @private
+     */
     this.state_ = /** @type {import("./Layer.js").State} */ ({
       layer: /** @type {import("./Layer.js").default} */ (this),
       managed: true
     });
 
     /**
-    * The layer type.
-    * @type {import("../LayerType.js").default}
-    * @protected;
-    */
+     * The layer type.
+     * @type {import("../LayerType.js").default}
+     * @protected;
+     */
     this.type;
 
   }
 
   /**
-  * Get the layer type (used when creating a layer renderer).
-  * @return {import("../LayerType.js").default} The layer type.
-  */
+   * Get the layer type (used when creating a layer renderer).
+   * @return {import("../LayerType.js").default} The layer type.
+   */
   getType() {
     return this.type;
   }
 
   /**
-  * @return {import("./Layer.js").State} Layer state.
-  */
+   * @return {import("./Layer.js").State} Layer state.
+   */
   getLayerState() {
     this.state_.opacity = clamp(this.getOpacity(), 0, 1);
     this.state_.sourceState = this.getSourceState();
@@ -100,149 +100,149 @@ class BaseLayer extends BaseObject {
   }
 
   /**
-  * @abstract
-  * @param {Array<import("./Layer.js").default>=} opt_array Array of layers (to be
-  *     modified in place).
-  * @return {Array<import("./Layer.js").default>} Array of layers.
-  */
+   * @abstract
+   * @param {Array<import("./Layer.js").default>=} opt_array Array of layers (to be
+   *     modified in place).
+   * @return {Array<import("./Layer.js").default>} Array of layers.
+   */
   getLayersArray(opt_array) {}
 
   /**
-  * @abstract
-  * @param {Array<import("./Layer.js").State>=} opt_states Optional list of layer
-  *     states (to be modified in place).
-  * @return {Array<import("./Layer.js").State>} List of layer states.
-  */
+   * @abstract
+   * @param {Array<import("./Layer.js").State>=} opt_states Optional list of layer
+   *     states (to be modified in place).
+   * @return {Array<import("./Layer.js").State>} List of layer states.
+   */
   getLayerStatesArray(opt_states) {}
 
   /**
-  * Return the {@link module:ol/extent~Extent extent} of the layer or `undefined` if it
-  * will be visible regardless of extent.
-  * @return {import("../extent.js").Extent|undefined} The layer extent.
-  * @observable
-  * @api
-  */
+   * Return the {@link module:ol/extent~Extent extent} of the layer or `undefined` if it
+   * will be visible regardless of extent.
+   * @return {import("../extent.js").Extent|undefined} The layer extent.
+   * @observable
+   * @api
+   */
   getExtent() {
     return (
-    /** @type {import("../extent.js").Extent|undefined} */ (this.get(LayerProperty.EXTENT))
+      /** @type {import("../extent.js").Extent|undefined} */ (this.get(LayerProperty.EXTENT))
     );
   }
 
   /**
-  * Return the maximum resolution of the layer.
-  * @return {number} The maximum resolution of the layer.
-  * @observable
-  * @api
-  */
+   * Return the maximum resolution of the layer.
+   * @return {number} The maximum resolution of the layer.
+   * @observable
+   * @api
+   */
   getMaxResolution() {
     return /** @type {number} */ (this.get(LayerProperty.MAX_RESOLUTION));
   }
 
   /**
-  * Return the minimum resolution of the layer.
-  * @return {number} The minimum resolution of the layer.
-  * @observable
-  * @api
-  */
+   * Return the minimum resolution of the layer.
+   * @return {number} The minimum resolution of the layer.
+   * @observable
+   * @api
+   */
   getMinResolution() {
     return /** @type {number} */ (this.get(LayerProperty.MIN_RESOLUTION));
   }
 
   /**
-  * Return the opacity of the layer (between 0 and 1).
-  * @return {number} The opacity of the layer.
-  * @observable
-  * @api
-  */
+   * Return the opacity of the layer (between 0 and 1).
+   * @return {number} The opacity of the layer.
+   * @observable
+   * @api
+   */
   getOpacity() {
     return /** @type {number} */ (this.get(LayerProperty.OPACITY));
   }
 
   /**
-  * @abstract
-  * @return {import("../source/State.js").default} Source state.
-  */
+   * @abstract
+   * @return {import("../source/State.js").default} Source state.
+   */
   getSourceState() {}
 
   /**
-  * Return the visibility of the layer (`true` or `false`).
-  * @return {boolean} The visibility of the layer.
-  * @observable
-  * @api
-  */
+   * Return the visibility of the layer (`true` or `false`).
+   * @return {boolean} The visibility of the layer.
+   * @observable
+   * @api
+   */
   getVisible() {
     return /** @type {boolean} */ (this.get(LayerProperty.VISIBLE));
   }
 
   /**
-  * Return the Z-index of the layer, which is used to order layers before
-  * rendering. The default Z-index is 0.
-  * @return {number} The Z-index of the layer.
-  * @observable
-  * @api
-  */
+   * Return the Z-index of the layer, which is used to order layers before
+   * rendering. The default Z-index is 0.
+   * @return {number} The Z-index of the layer.
+   * @observable
+   * @api
+   */
   getZIndex() {
     return /** @type {number} */ (this.get(LayerProperty.Z_INDEX));
   }
 
   /**
-  * Set the extent at which the layer is visible.  If `undefined`, the layer
-  * will be visible at all extents.
-  * @param {import("../extent.js").Extent|undefined} extent The extent of the layer.
-  * @observable
-  * @api
-  */
+   * Set the extent at which the layer is visible.  If `undefined`, the layer
+   * will be visible at all extents.
+   * @param {import("../extent.js").Extent|undefined} extent The extent of the layer.
+   * @observable
+   * @api
+   */
   setExtent(extent) {
     this.set(LayerProperty.EXTENT, extent);
   }
 
   /**
-  * Set the maximum resolution at which the layer is visible.
-  * @param {number} maxResolution The maximum resolution of the layer.
-  * @observable
-  * @api
-  */
+   * Set the maximum resolution at which the layer is visible.
+   * @param {number} maxResolution The maximum resolution of the layer.
+   * @observable
+   * @api
+   */
   setMaxResolution(maxResolution) {
     this.set(LayerProperty.MAX_RESOLUTION, maxResolution);
   }
 
   /**
-  * Set the minimum resolution at which the layer is visible.
-  * @param {number} minResolution The minimum resolution of the layer.
-  * @observable
-  * @api
-  */
+   * Set the minimum resolution at which the layer is visible.
+   * @param {number} minResolution The minimum resolution of the layer.
+   * @observable
+   * @api
+   */
   setMinResolution(minResolution) {
     this.set(LayerProperty.MIN_RESOLUTION, minResolution);
   }
 
   /**
-  * Set the opacity of the layer, allowed values range from 0 to 1.
-  * @param {number} opacity The opacity of the layer.
-  * @observable
-  * @api
-  */
+   * Set the opacity of the layer, allowed values range from 0 to 1.
+   * @param {number} opacity The opacity of the layer.
+   * @observable
+   * @api
+   */
   setOpacity(opacity) {
     this.set(LayerProperty.OPACITY, opacity);
   }
 
   /**
-  * Set the visibility of the layer (`true` or `false`).
-  * @param {boolean} visible The visibility of the layer.
-  * @observable
-  * @api
-  */
+   * Set the visibility of the layer (`true` or `false`).
+   * @param {boolean} visible The visibility of the layer.
+   * @observable
+   * @api
+   */
   setVisible(visible) {
     this.set(LayerProperty.VISIBLE, visible);
   }
 
   /**
-  * Set Z-index of the layer, which is used to order layers before rendering.
-  * The default Z-index is 0.
-  * @param {number} zindex The z-index of the layer.
-  * @observable
-  * @api
-  */
+   * Set Z-index of the layer, which is used to order layers before rendering.
+   * The default Z-index is 0.
+   * @param {number} zindex The z-index of the layer.
+   * @observable
+   * @api
+   */
   setZIndex(zindex) {
     this.set(LayerProperty.Z_INDEX, zindex);
   }
diff --git a/src/ol/source/Source.js b/src/ol/source/Source.js
index e56ba68a32..858c0e9d9c 100644
--- a/src/ol/source/Source.js
+++ b/src/ol/source/Source.js
@@ -55,15 +55,15 @@ class Source extends BaseObject {
     super();
 
     /**
-    * @private
-    * @type {import("../proj/Projection.js").default}
-    */
+     * @private
+     * @type {import("../proj/Projection.js").default}
+     */
     this.projection_ = getProjection(options.projection);
 
     /**
-    * @private
-    * @type {?Attribution}
-    */
+     * @private
+     * @type {?Attribution}
+     */
     this.attributions_ = this.adaptAttributions_(options.attributions);
 
     /**
@@ -74,25 +74,25 @@ class Source extends BaseObject {
     this.loading = false;
 
     /**
-    * @private
-    * @type {SourceState}
-    */
+     * @private
+     * @type {SourceState}
+     */
     this.state_ = options.state !== undefined ?
       options.state : SourceState.READY;
 
     /**
-    * @private
-    * @type {boolean}
-    */
+     * @private
+     * @type {boolean}
+     */
     this.wrapX_ = options.wrapX !== undefined ? options.wrapX : false;
 
   }
 
   /**
-  * Turns the attributions option into an attributions function.
-  * @param {AttributionLike|undefined} attributionLike The attribution option.
-  * @return {?Attribution} An attribution function (or null).
-  */
+   * Turns the attributions option into an attributions function.
+   * @param {AttributionLike|undefined} attributionLike The attribution option.
+   * @return {?Attribution} An attribution function (or null).
+   */
   adaptAttributions_(attributionLike) {
     if (!attributionLike) {
       return null;
@@ -113,69 +113,69 @@ class Source extends BaseObject {
   }
 
   /**
-  * Get the attribution function for the source.
-  * @return {?Attribution} Attribution function.
-  */
+   * Get the attribution function for the source.
+   * @return {?Attribution} Attribution function.
+   */
   getAttributions() {
     return this.attributions_;
   }
 
   /**
-  * Get the projection of the source.
-  * @return {import("../proj/Projection.js").default} Projection.
-  * @api
-  */
+   * Get the projection of the source.
+   * @return {import("../proj/Projection.js").default} Projection.
+   * @api
+   */
   getProjection() {
     return this.projection_;
   }
 
   /**
-  * @abstract
-  * @return {Array<number>|undefined} Resolutions.
-  */
+   * @abstract
+   * @return {Array<number>|undefined} Resolutions.
+   */
   getResolutions() {}
 
   /**
-  * Get the state of the source, see {@link module:ol/source/State~State} for possible states.
-  * @return {SourceState} State.
-  * @api
-  */
+   * Get the state of the source, see {@link module:ol/source/State~State} for possible states.
+   * @return {SourceState} State.
+   * @api
+   */
   getState() {
     return this.state_;
   }
 
   /**
-  * @return {boolean|undefined} Wrap X.
-  */
+   * @return {boolean|undefined} Wrap X.
+   */
   getWrapX() {
     return this.wrapX_;
   }
 
   /**
-  * Refreshes the source and finally dispatches a 'change' event.
-  * @api
-  */
+   * Refreshes the source and finally dispatches a 'change' event.
+   * @api
+   */
   refresh() {
     this.changed();
   }
 
   /**
-  * Set the attributions of the source.
-  * @param {AttributionLike|undefined} attributions Attributions.
-  *     Can be passed as `string`, `Array<string>`, `{@link module:ol/source/Source~Attribution}`,
-  *     or `undefined`.
-  * @api
-  */
+   * Set the attributions of the source.
+   * @param {AttributionLike|undefined} attributions Attributions.
+   *     Can be passed as `string`, `Array<string>`, `{@link module:ol/source/Source~Attribution}`,
+   *     or `undefined`.
+   * @api
+   */
   setAttributions(attributions) {
     this.attributions_ = this.adaptAttributions_(attributions);
     this.changed();
   }
 
   /**
-  * Set the state of the source.
-  * @param {SourceState} state State.
-  * @protected
-  */
+   * Set the state of the source.
+   * @param {SourceState} state State.
+   * @protected
+   */
   setState(state) {
     this.state_ = state;
     this.changed();