Mark optional property with square brackets

src/ol/format/EsriJSON.js

@@ -50,7 +50,7 @@ GEOMETRY_WRITERS[GeometryType.MULTI_POLYGON] = writeMultiPolygonGeometry;
 
 /**
  * @typedef {Object} Options
- * @property {string|undefined} geometryName Geometry name to use when creating features.
+ * @property {string} [geometryName] Geometry name to use when creating features.
  */
 
 

src/ol/format/Feature.js

@@ -30,7 +30,7 @@ import {get as getProjection, equivalent as equivalentProjection, transformExten
  * @property {ol.ProjectionLike} featureProjection Projection of the feature geometries
  * that will be serialized by the format writer. If not provided, geometries are assumed
  * to be in the `dataProjection` if that is set; in other words, they are not transformed.
- * @property {boolean|undefined} rightHanded When writing geometries, follow the right-hand
+ * @property {boolean} [rightHanded] When writing geometries, follow the right-hand
  * rule for linear ring orientation.  This means that polygons will have counter-clockwise
  * exterior rings and clockwise interior rings.  By default, coordinates are serialized
  * as they are provided at construction.  If `true`, the right-hand rule will
@@ -38,7 +38,7 @@ import {get as getProjection, equivalent as equivalentProjection, transformExten
  * exterior and counter-clockwise for interior rings).  Note that not all
  * formats support this.  The GeoJSON format does use this property when writing
  * geometries.
- * @property {number|undefined} decimals Maximum number of decimal places for coordinates.
+ * @property {number} [decimals] Maximum number of decimal places for coordinates.
  * Coordinates are stored internally as floats, but floating-point arithmetic can create
  * coordinates with a large number of decimal places, not generally wanted on output.
  * Set a number here to round coordinates. Can also be used to ensure that

src/ol/format/GPX.js

@@ -20,7 +20,7 @@ import {createElementNS, makeArrayPusher, makeArraySerializer, makeChildAppender
 
 /**
  * @typedef {Object} Options
- * @property {function(module:ol/Feature~Feature, Node)|undefined} readExtensions Callback function
+ * @property {function(module:ol/Feature~Feature, Node)} [readExtensions] Callback function
  * to process `extensions` nodes. To prevent memory leaks, this callback function must
  * not store any references to the node. Note that the `extensions`
  * node is not allowed in GPX 1.0. Moreover, only `extensions`

src/ol/format/IGC.js

@@ -22,9 +22,8 @@ const IGCZ = {
 
 /**
  * @typedef {Object} Options
- * @property {IGCZ|string|undefined} altitudeMode Altitude mode. Possible
- * values are `'barometric'`, `'gps'`, and `'none'`. Default
- * is `'none'`.
+ * @property {IGCZ|string} [altitudeMode='none'] Altitude mode. Possible
+ * values are `'barometric'`, `'gps'`, and `'none'`.
  */
 
 

src/ol/format/MVT.js

@@ -24,16 +24,16 @@ import RenderFeature from '../render/Feature.js';
 
 /**
  * @typedef {Object} Options
- * @property {undefined|function((module:ol/geom/Geometry~Geometry|Object.<string,*>)=)|function(module:ol/geom/GeometryType~GeometryType,Array.<number>,(Array.<number>|Array.<Array.<number>>),Object.<string,*>,number)} featureClass
+ * @property {function((module:ol/geom/Geometry~Geometry|Object.<string,*>)=)|function(module:ol/geom/GeometryType~GeometryType,Array.<number>,(Array.<number>|Array.<Array.<number>>),Object.<string,*>,number)} [featureClass]
  * Class for features returned by {@link ol.format.MVT#readFeatures}. Set to
  * {@link module:ol/Feature~Feature} to get full editing and geometry support at the cost of
  * decreased rendering performance. The default is {@link ol.render.Feature},
  * which is optimized for rendering and hit detection.
- * @property {string|undefined} geometryName Geometry name to use when creating
- * features. Default is `'geometry'`.
- * @property {string|undefined} layerName Name of the feature attribute that
- * holds the layer name. Default is `'layer'`.
- * @property {Array.<string>|undefined} layers Layers to read features from. If not
+ * @property {string} [geometryName='geometry'] Geometry name to use when creating
+ * features.
+ * @property {string} [layerName='layer'] Name of the feature attribute that
+ * holds the layer name.
+ * @property {Array.<string>} [layers] Layers to read features from. If not
  * provided, features will be read from all layers.
  */
 

src/ol/format/WKT.js

@@ -19,8 +19,8 @@ import SimpleGeometry from '../geom/SimpleGeometry.js';
 
 /**
  * @typedef {Object} Options
- * @property {boolean|undefined} splitCollection Whether to split GeometryCollections into
- * multiple features on reading. Default is `false`.
+ * @property {boolean} [splitCollection=false] Whether to split GeometryCollections into
+ * multiple features on reading.
  */