String javascript
String is a sequence or series of characters can contain letter, digit or symbols enclosed in single quotes, double quotes…
Boolean javascript
Boolean is a primitive data type only represents two values true or false, and mostly used with decision making (conditional…
null javascript
null is a primitive data type represents an object with no value. Example
JavaScript undefined
undefined is a primitive data type in javascript. When a variable is declared and not initialized or assigned a value,…
JavaScript Numbers
Number in javascript is any number either it is integer or floating number, is always a double precision 64 bit…
JavaScript Data Types
Data type in javascript, specifies the type of data a variable is going to store or hold, It is important…
Initializer – javascript
Initializer in javascript, is a value assigned during declaration of a variable, using Automatic, var, let and const keyword. It…
Difference between var, let and const
Difference table of var, let and const keyword is created, to easily understand its use. var let const Initialization No…
const – javascript
const is a javascript keyword used to declare variable, whose value is assigned during declaration and cannot be changed or…
let – javascript
let is a javascript keyword used to declare a variable, it is introduced by ECMAScript 2015(ES6) in 2015. Variable declared…