diff --git a/examples/reprojection-by-code.js b/examples/reprojection-by-code.js
index 9f24efcb8d..96203a4177 100644
--- a/examples/reprojection-by-code.js
+++ b/examples/reprojection-by-code.js
@@ -72,7 +72,7 @@ function search(query) {
       if (response) {
         var results = response['results'];
         if (results && results.length > 0) {
-          for (var i = 0; i < results.length; i++) {
+          for (var i = 0, ii = results.length; i < ii; i++) {
             var result = results[i];
             if (result) {
               var code = result['code'], name = result['name'],
diff --git a/externs/olx.js b/externs/olx.js
index e2cd7a93f5..60da9abb15 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -3644,7 +3644,8 @@ olx.source.BingMapsOptions.prototype.maxZoom;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -3830,7 +3831,8 @@ olx.source.TileImageOptions.prototype.projection;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -4111,7 +4113,8 @@ olx.source.MapQuestOptions.prototype.layer;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -4211,7 +4214,8 @@ olx.source.OSMOptions.prototype.maxZoom;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -4615,7 +4619,8 @@ olx.source.StamenOptions.prototype.opaque;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -4801,7 +4806,8 @@ olx.source.TileArcGISRestOptions.prototype.projection;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -4877,7 +4883,8 @@ olx.source.TileJSONOptions.prototype.crossOrigin;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -5020,7 +5027,8 @@ olx.source.TileWMSOptions.prototype.projection;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -5259,7 +5267,8 @@ olx.source.WMTSOptions.prototype.projection;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -5445,7 +5454,8 @@ olx.source.XYZOptions.prototype.projection;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
@@ -5580,7 +5590,8 @@ olx.source.ZoomifyOptions.prototype.logo;
 
 
 /**
- * Maximum allowed reprojection error.
+ * Maximum allowed reprojection error (in pixels). Default is `0.5`.
+ * Higher values can increase reprojection performance, but decrease precision.
  * @type {number|undefined}
  * @api
  */
diff --git a/src/ol/ol.js b/src/ol/ol.js
index 48d80a1416..0e441ae844 100644
--- a/src/ol/ol.js
+++ b/src/ol/ol.js
@@ -174,7 +174,8 @@ ol.OVERVIEWMAP_MIN_RATIO = 0.1;
 
 
 /**
- * @define {number} Maximum number of source tiles for raster reprojection.
+ * @define {number} Maximum number of source tiles for raster reprojection of
+ *     a single tile.
  *     If too many source tiles are determined to be loaded to create a single
  *     reprojected tile the browser can become unresponsive or even crash.
  *     This can happen if the developer defines projections improperly and/or
@@ -188,7 +189,7 @@ ol.RASTER_REPROJ_MAX_SOURCE_TILES = 100;
 /**
  * @define {number} Maximum number of subdivision steps during raster
  *     reprojection triangulation. Prevents high memory usage and large
- *     number of proj4 calls when for certain transformations and areas.
+ *     number of proj4 calls (for certain transformations and areas).
  *     At most `2*(2^this)` triangles are created. Default is `10`.
  */
 ol.RASTER_REPROJ_MAX_SUBDIVISION = 10;
@@ -197,7 +198,7 @@ ol.RASTER_REPROJ_MAX_SUBDIVISION = 10;
 /**
  * @define {number} Maximum allowed size of triangle relative to world width.
  *     When transforming corners of world extent between certain projections,
- *     The resulting triangulation seems to have zero error and no subdivision
+ *     the resulting triangulation seems to have zero error and no subdivision
  *     is performed.
  *     If the triangle width is more than this (relative to world width; 0-1),
  *     subdivison is forced (respecting `ol.RASTER_REPROJ_MAX_SUBDIVISION`).
diff --git a/src/ol/reproj/triangulation.js b/src/ol/reproj/triangulation.js
index 2e0cc278b4..2edd3d455d 100644
--- a/src/ol/reproj/triangulation.js
+++ b/src/ol/reproj/triangulation.js
@@ -83,7 +83,7 @@ ol.reproj.Triangulation = function(sourceProj, targetProj, targetExtent,
   this.trianglesSourceExtent_ = null;
 
   /**
-   * Indicates that source coordinates has to be shifted during reprojection.
+   * Indicates that source coordinates have to be shifted during reprojection.
    * This is needed when the triangulation crosses
    * edge of the source projection (dateline).
    * @type {boolean}
@@ -286,7 +286,7 @@ ol.reproj.Triangulation.prototype.calculateSourceExtent = function() {
 
   if (this.wrapsXInSource_) {
     // although only some of the triangles are crossing the dateline,
-    // all coordiantes need to be "shifted" to be positive
+    // all coordinates need to be "shifted" to be positive
     // to properly calculate the extent (and then possibly shifted back)
 
     goog.array.forEach(this.triangles_, function(triangle, i, arr) {
diff --git a/src/ol/source/tileimagesource.js b/src/ol/source/tileimagesource.js
index 14f416517c..4cf2ae41af 100644
--- a/src/ol/source/tileimagesource.js
+++ b/src/ol/source/tileimagesource.js
@@ -307,7 +307,9 @@ ol.source.TileImage.prototype.handleTileChange_ = function(event) {
  * @api
  */
 ol.source.TileImage.prototype.setRenderReprojectionEdges = function(render) {
-  if (this.renderReprojectionEdges_ == render) return;
+  if (this.renderReprojectionEdges_ == render) {
+    return;
+  }
   this.renderReprojectionEdges_ = render;
   goog.object.forEach(this.tileCacheForProjection, function(tileCache) {
     tileCache.clear();