Global Pollution

global-pollution.html

    <script>
        const PROPERTIES = [
            // { names: ['$', 'jQuery'], getVersion: (value) => value().jquery },
            { names: ['_'], getVersion: (value) => value.version },
        ];
        for (let { names, getVersion } of PROPERTIES) {
            for (let name of names) {
                let scopedValue;
                Reflect.defineProperty(globalThis, name, {
                    configurable: true,
                    enumerable: true,
                    // writable: true,
                    // value: undefined,
                    get: () => scopedValue,
                    set(value) {
                        console.warn(`GTP::set ${name}`, value);                    
                        debugger;
                        scopedValue = value;
                    },
                });
            }
        }
    </script>