How would you implement a fallback image in case the primary image fails to load?

  • Setting the fallback image as a default value in the database. 
  • Using CSS background-image property. 
  • Using JavaScript to detect the error and replace the image. 
  • Using the alt attribute in the tag. 
The best method to implement a fallback image when the primary image fails to load is through JavaScript. You can use the onerror event of the tag to detect the loading error and then replace the image's src attribute with the fallback image's path. The alt attribute is primarily for accessibility and doesn't serve as a fallback image. CSS background-image and database defaults are not direct methods for this specific scenario. 
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