updating function doc: returns undefined, not null

gatsbyjs · Jun 30, 2020 · c673384 · c673384
1 parent ed25dd1
commit c673384
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/gatsby-image/src/index.js b/packages/gatsby-image/src/index.js
@@ -71,7 +71,7 @@ const matchesMedia = ({ media }) =>
  * Find the source of an image to use as a key in the image cache.
  * Use `the first image in either `fixed` or `fluid`
  * @param {{fluid: {src: string, media?: string}[], fixed: {src: string, media?: string}[]}} args
- * @return {string} or null if not cacheable
+ * @return {string} or undefined if not cacheable
  */
 const getImageCacheKey = ({ fluid, fixed }) => {
   const srcData = getCurrentSrcData(fluid || fixed || [])