use of anonymous function in javascript code example

Example 1: js anonymous function es6

// (param1, param2, paramN) => expression

// ES5
var multiplyES5 = function(x, y) {
  return x * y;
};

// ES6
const multiplyES6 = (x, y) => { return x * y };

Example 2: anonymous function javascript

// Arrow functions
// ES6 introduced arrow function expression that provides a shorthand for declaring anonymous functions:

// For example, this function:

let show = function () {
    console.log('Anonymous function');
};
// Code language: JavaScript (javascript)
// … can be shortened using the following arrow function:

let show = () => console.log('Anonymous function');
let show = (variable) => { /* code */ }
// Code language: JavaScript (javascript)
// Similarly, the following anonymous function:

let add = function (a, b) {
    return a + b;
};
// Code language: JavaScript (javascript)
// … is equivalent to the following arrow function:

let add = (a, b)  => a + b;