Stores in this set the difference of it with another another set (i.e.
this - otherSet). Notice that this is not equivalent to otherSet - thisSet.
Stores in this set the intersection of it with another another set
Stores in this set the union of it with another another set
StaticdifferenceStaticintersectionStaticunion
~Based on this code: https://stackoverflow.com/questions/4343746/is-there-a-data-structure-like-the-java-set-in-javascript
Changed the name of functions 'contains' to the name used in ECMAScript 6 ('has'). 'remove' has not been changed to 'delete' because in LARA 'delete' is a keyword and cannot be used as a function name Also, tweaked the functionality of 'add' and 'delete' to behave similarly to ECMAScript 6 Set.~
Implementation changed to use a standard javascript Set instead of a custom implementation.
Deprecated
Use a standard Set instead