😁 IIFE or Immediately-invoked Functions Expressions is a design pattern that runs functions as soon as such functions are created on its runtime environment.
😎 In general, IIFE's are related to the desire to not pollute the global object and/or to isolate business logics.
<pre><code class="lang-javascript">;(function thisIsANamedIIFE() { 
 let name = "Beto Muniz";
})();
</code></pre>
😋 This pattern is used a lot for library creators. Even Rollup.js, which is a good bundler for libraries offer this output.

😁 IIFE or Immediately-invoked Functions Expressions is a design pattern that runs functions as soon as such functions are created on its runtime environment.

😎 In general, IIFE's are related to the desire to not pollute the global object and/or to isolate business logics.

```javascript
;(function thisIsANamedIIFE() { 
    let name = "Beto Muniz";
})();
```

😋 This pattern is used a lot for library creators. Even Rollup.js, which is a good bundler for libraries offer this output.

What are IIFE or Immediate Functions on JavaScript?