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Author: Donaldcwl

lib/utils.js

@@ -327,7 +327,7 @@ export function getExifOrientation(file) {
     reader.onload = (e) => {
       const view = new DataView(e.target.result);
       if (view.getUint16(0, false) != 0xFFD8) {
-        return resolve(-2);
+        return resolve(-2); // not jpeg
       }
       const length = view.byteLength;
       let offset = 2;
@@ -355,7 +355,7 @@ export function getExifOrientation(file) {
           offset += view.getUint16(offset, false);
         }
       }
-      return resolve(-1);
+      return resolve(-1); // not defined
     };
     reader.onerror = (e) => reject(e);
     reader.readAsArrayBuffer(file);