JavaScript Security Best Practices

Object.freeze(Object.prototype);
Object.freeze(Array.prototype);
Object.freeze(Function.prototype);

Memory protection
Code optimization
Prototype hardening
This code implements prototype hardening, a security measure that prevents modification of built-in object prototypes. This helps prevent prototype pollution attacks and other prototype-based exploits. By freezing core prototypes, you ensure that malicious code cannot modify fundamental JavaScript behavior. However, remember this should be done early in application initialization.
Error prevention