An array is a special variable, which can hold more than one value array are special type of object typeof array "object" it contain ordered list of values keys are indexed (starts from 0..) Use square bracket [] because key is number Creating an ...
An object is an collection value and key pair. Creating Objects we use curley brackets {} or object literal to create object. ex-let user = { name: "John", age: 18 isAdult: true } Different Operations perform in objects Accessing a value Adding...
Function Declaration Function Expression Anonymous Function Expression Arrow function Function Declaration When a function is starting with keyword function that kind of function is known as function declration. ex- function add(a,b){ return a+b } a...
Functions are a way to store series of steps that we do to perform certain actions. How to create a function Function(The keyword that create a box) addTwoNumber(Name of the Created box) Curley Brackets ( {} ) So whatever inside curley brackets is...
Sometimes In our program we want to repeat some action multiple times. for-ex I want to console.log("Hello world") 4 times. The hard way to do that would be to wrote code again and again. this code works but the idea of programming is to make thing...
Sometimes when we are programming we will have to make decision to execute one blockof code based on some condition. to make this happen we can use one of these decision statements. If/else Switch Expression Ternary ? Operator If/else if st...
The Operator that gives either truthy or false value based on input. There are three logical operator. OR Operator(||) AND Operator(&&) Not operator(!) OR Operator The rule of OR Operator is it always find the first truthy value not true value. ...
There are 6 types of comparison operator. Greater/less than(>/<) Greater/less than or equal(>=/<=) Equals(==) Not equals(!=) Strict equal(===) Strict not equal(!==) Greater/less than(>/<) Greater/less than operator is used to compare the va...
Operator are symbols that can change value. Addition(+) Subtraction(-) Multiplication(*) Division(/) Remainder(%) Exponentioal(+) Comma(,) Understing terms Operands Operands are values on which operator is appied on. eg- 21+20 - here 21 and 22 are ...