what_is_module_pattern_.md

What is module pattern?

What is the Module Pattern?

The Module Pattern is a design pattern used to encapsulate private and public variables and methods. It provides a way to create a namespace and control access to certain parts of code.

Example:

const myModule = (function() {
  let privateVar = 'I am private';

  function privateMethod() {
    console.log(privateVar);
  }

  return {
    publicMethod: function() {
      privateMethod();
    }
  };
})();

myModule.publicMethod(); // 'I am private'
console.log(myModule.privateVar); // undefined

Tags: intermediate, JavaScript, Design Patterns