es6 unique array of objects with set

Question

I came across this example for creating unique arrays with es6

[ ...new Set(array) ]

Which seems to work fine until I tried it with an arra

Answer 1

This will work:

let objectReference = {id:123,value:'test'}
let uniqueArray = [...new Set([objectReference, objectReference])]

>> [{id:123,value:'test'}]

What you're doing:

let objRef1 = {id:123,value:'test'} // creates a reference to a location in memory
let objRef2 = {id:123,value:'test'} // creates a new reference to a different place in memory

let uniqueArray = [...new Set([objRef1, objRef2])]

>> [{id:123,value:'test'},{id:123,value:'test'}]