Category: Interview Questions

If you call a method that doesn’t exist, Ruby calls method_missing.You can override it to handle undefined methods.

In Ruby, type is determined by behavior (methods), not class.If an object can perform required actions, it can be used.

Ruby does not support multiple inheritance. Instead, it uses Mixins (via include keyword).

self represents the current object. Inside a class → self refers to the object calling the method. For class methods → self refers to the class itself.

Symbols are immutable, reusable names represented with a colon :.They are faster and consume less memory than strings.

Example: