Method constructor

docs/app/js/sanddance-app.js:110674–110685

(entries, key = keyof)

parcelHelpers.export(exports, "InternSet", ()=>InternSet);
class InternMap extends Map {
    constructor(entries, key = keyof){
        super();
        Object.defineProperties(this, {
            _intern: {
                value: new Map()
            },
            _key: {
                value: key
            }
        });
        if (entries != null) for (const [key1, value] of entries)this.set(key1, value);
    }
    get(key) {
        return super.get(intern_get(this, key));
    }