In most browsers the shorter and more specific variant of the code will run faster (in some instances much faster) than the second variant and so it makes sense to use the shorter and more specific version. It also makes the code easier to read and maintain.
In the United States and Canada frozen ice on a stick is generically referred to as a popsicle due to the early popularity of the Popsicle brand, and the word has become a genericized trademark to mean any ice pop or freezer pop, regardless of brand or format.
I fed both my kids watermelon before one year and they both loved it. It easily purees into delicious juice for popsicles too. Wet a washcloth and throw it into the freezer. Baby will chew and suck on it and the cold terry cloth will feel great on their gums with little danger of choking on a piece that breaks off.