Anonymous Functions And Immediately Invocation Functions

functions.js

//1 function without name anonymous
(function () {

});

//2 function that with Immediately invocation
(function () {
console.log("Immediately invocation function")
})();

//3 anonymous function with variable
let anonymous = function () {
    console.log('Anonymous function stored in variable')
};
anonymous();

//4 anonymous function as argument to timeout function
setTimeout(function () {
    console.log('Anonymous function as argument - Run after two second ')
}, 2000);


//5 function that with Immediately Invocation with arguments
let person = {
    name: 'ChandrakantSangale',
    city: 'Pune'
};

(function () {
    console.log(person.name + ' ' + person.city);
})(person);

//6 Arrow function with anonymous function
let simpleShow = function () {
    console.log("simple function")

};

//7 Arrow function with anonymous function
let simpleShowArrow = () => console.log('anonymous function with arrow')

//8 Arrow function with anonymous function
let add = function (a, b) {
    return a + b;
}
//9 Arrow function with anonymous function
let addArrow = (a, b) => a + b;


//Q-Why anonymous function is used and advantages
// prevents the global namespaces from becoming littered(messy) with variables and functions that may not be needed further. It can be also be used to enable access to only the variables and functions.


//Q-What are self invoking function 
// Self-Invoking Functions
// A self-invoking (also called self-executing) function is a nameless (anonymous) function that is invoked immediately after its definition.
// An anonymous function is enclosed inside a set of parentheses followed by another set of parentheses (), which does the execution