es6.set.js 396 B

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  1. 'use strict';
  2. var strong = require('./_collection-strong');
  3. // 23.2 Set Objects
  4. module.exports = require('./_collection')('Set', function(get){
  5. return function Set(){ return get(this, arguments.length > 0 ? arguments[0] : undefined); };
  6. }, {
  7. // 23.2.3.1 Set.prototype.add(value)
  8. add: function add(value){
  9. return strong.def(this, value = value === 0 ? 0 : value, value);
  10. }
  11. }, strong);