Normal Function function aFunction(props){ return My Todo; } Arrow Function const aFunction = (props) => { return My Todo; }

Javascript map() function can applies a function to each element in an array and returns a copy of the original array with modified values (if any). Syntax const newArray = oldArray.map(function(elementValue, index, array) { // Do stuff with elmentValue (index and array are optional) }); Parameteres newArray – the new array that is returned oldArray…

Javascript reduce() method reduces the array to a single value. It can also executes a provided function for each value of the array (from left-to-right). The return value of the function is stored in an accumulator (result/total). Syntax of .reduce() function array.reduce(function(total, currentValue, currentIndex, arr), initialValue) Parameters total Required – The initialValue, or the previously…

.map() with call back function .map() accepts a callback function as one of its arguments, and an important parameter of that function is the current value of the item being processed by the function. This is a required parameter. With this parameter, we can modify each individual item in an array and create a new…

A class is a blueprint of object. Class can have properties and methods //in ES7 class Car { //eliminating constructor model = ‘BMW’; printModel = () => { console.log(this.model); } } class Human { constructor (){ this.gender = ‘male’; } printGender(){ console.log(this.gender); } } class Person extends human { constructor (){ super(); this.name = “john”;…

const printMyName = (name) => { console.log(name); } printMyName(‘John’); const multiply = number => number*2; console.log(multiply(2));

In this particular post I will write all the comments in inside the code. It will be easy to have all the functions in a single location so that you can go through all the topics all at once. // // Declaring an Array var myArray = new Array(); // Using Array Constructor, try to…

Most of the new developers faces huge trouble to identify the difference between JavaScript Array and JavaScript Object. This particular post will help you to pass your initial hurdle and you will be able to play efficiently with JavaScript Array and JavaScript Object How to Define JavasCript Array? // // Declaring an Array var myArray…