javascript call arrow function immediately code example

Example 1: immediate invoke function js

(() => {
  // statements
})();

Example 2: Immediately-Invoked Function javascript

(() => {
  /* */
})()

Example 3: javascript this inside arrow function

function A() {
  this.val = "Error";
  (function() {
    this.val = "Success";
  })();
}

function B() {
  this.val = "Error";
  (() => {
    this.val = "Success";
  })();
}

var a = new A();
var b = new B();
a.val // "Error"
b.val // "Success"