问未从LocalStorage中删除正确的索引项

EN

deleteImage(image ){
    const index = this.selectedGallery.indexOf(image);
    this.selectedGallery.splice(index, 1);
    localStorage.setItem('selectedImages', JSON.stringify(this.selectedGallery));
}

if (localStorage) {
   var selectedImages;
   if (!localStorage['selectedImages']) selectedImages = [];
   else selectedImages = JSON.parse(localStorage['selectedImages']);
   if (!(selectedImages instanceof Array)) selectedImages = [];
   selectedImages.push(imageFile);
   localStorage.setItem('selectedImages', JSON.stringify(selectedImages));
   his.storageSubject.next(selectedImages);
}