Made With Reflect4 Proxy High Quality Verified ✦ Complete & Secure

// 8. Prevent extensions preventExtensions(target) return Reflect.preventExtensions(target); ,

// Given: const obj = a: 1, get b() return this.a + 1; ; // Then the proxy should: assert(proxy.a === 1); assert(proxy.b === 2); // getter uses correct this assert(Object.keys(proxy).includes('a')); delete proxy.a; assert(proxy.a === undefined); proxy.c = 3; assert('c' in proxy); made with reflect4 proxy high quality

Even with Reflect4, mistakes can ruin your proxy quality: get b() return this.a + 1