@web-atoms/core/dist/core/AtomMap.js

Web Atoms Core

System.register([], function (_export, _context) {
  "use strict";

  return {
    setters: [],
    execute: function () {
      Map.prototype.getOrCreate = function (key, factory) {
        let item = this.get(key);
        if (item === undefined) {
          item = factory(key);
          this.set(key, item);
        }
        return item;
      };
      _export("default", Map);
    }
  };
});
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