This property defines the Unicodes which belongs to Emoticons block
Characters like 😀,😁,😂, etc. are listed under Emoticons Block.
80 Characters are present in Emoticons Block starting with the Unicode point U+1F600 that represents the character 😀.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.