javascript - How can I get TypeScript to build iterables in ES6 to ES5? -


i trying create unique array of user objects in angular 2 writing in typescript. using short , elegant es6 way create unique array: 

  this.users = array.from(new set(this.users))

i error when build typescript es5:

argument of type 'set<{}>' not assignable parameter of type 'iterableshim<{}>'. property '"es6-shim iterator"' missing in type 'set<{}>'.

i tried setting this.users : iterableshim<t> iterableshim not acceptable type string. docs string, array, typedarray, map , set built-in iterables, because prototype objects of them have symbol.iterator method. (source: https://developer.mozilla.org/en-us/docs/web/javascript/guide/iterators_and_generators ) there way typescript compile es6 recognizes iterables es5 without errors?

using lib option as: 

"lib": [   "dom","es6" ]

the following works fine : 

let users = [] users = array.from(new set(users))

more

https://basarat.gitbooks.io/typescript/content/docs/types/lib.d.ts.html#lib-option


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