Answer: Image preloading
Step-by-step explanation:
The Image Preloading process can be describes as follows:
1. Using the new keyword an instance of the image object is created.
2. The src property and the flename of the image is set be equal.
3. Then image is downloaded into the cache with displaying it.
4. The src property is set equal to the prefetched image when it is required to display the image.