Subclassing ES6 Set in javascript -



Subclassing ES6 Set in javascript -

i'm running problems when trying inherit new set available in ecmascript 6. class defined such:

function selectionmanager () { set.call(this); } selectionmanager.prototype = object.create(set.prototype); selectionmanager.prototype.add = function (unit) { unit.setisselected(true); set.prototype.add.call(this, unit); }; /* functions left out */

when trying phone call add next error: typeerror: set operation called on non-set object

the code available @ http://jsfiddle.net/6nq1gqx7/

the draft es6 states should possible subclass set, right way of doing so?

looks beingness tracked:

https://github.com/google/traceur-compiler/issues/1413

javascript set ecmascript-6 ecmascript-harmony

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