Cast empty optional options in constructor

To remove the typescript errors: ``` Property 'xxx' does not exist on type '{}' ```
2018-09-03 08:42:00 +02:00
parent a30f8859aa
commit 25c1754052
5 changed files with 5 additions and 5 deletions
--- a/src/ol/source/ImageWMS.js
+++ b/src/ol/source/ImageWMS.js
@@ -64,7 +64,7 @@ class ImageWMS extends ImageSource {
   */
  constructor(opt_options) {

-    const options = opt_options || {};
+    const options = opt_options || /** @type {module:ol/source/ImageWMS~Options} */ ({});

    super({
      attributions: options.attributions,